1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23 #include <linux/blkdev.h> 24 #include <linux/delay.h> 25 #include <linux/module.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/kthread.h> 30 #include <linux/slab.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 35 #include <scsi/scsi.h> 36 #include <scsi/scsi_device.h> 37 #include <scsi/scsi_host.h> 38 #include <scsi/scsi_transport_fc.h> 39 #include <scsi/fc/fc_fs.h> 40 41 #include <linux/nvme-fc-driver.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc.h" 50 #include "lpfc_scsi.h" 51 #include "lpfc_nvme.h" 52 #include "lpfc_nvmet.h" 53 #include "lpfc_logmsg.h" 54 #include "lpfc_crtn.h" 55 #include "lpfc_vport.h" 56 #include "lpfc_version.h" 57 #include "lpfc_compat.h" 58 #include "lpfc_debugfs.h" 59 #include "lpfc_bsg.h" 60 61 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 62 /* 63 * debugfs interface 64 * 65 * To access this interface the user should: 66 * # mount -t debugfs none /sys/kernel/debug 67 * 68 * The lpfc debugfs directory hierarchy is: 69 * /sys/kernel/debug/lpfc/fnX/vportY 70 * where X is the lpfc hba function unique_id 71 * where Y is the vport VPI on that hba 72 * 73 * Debugging services available per vport: 74 * discovery_trace 75 * This is an ACSII readable file that contains a trace of the last 76 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 77 * See lpfc_debugfs.h for different categories of discovery events. 78 * To enable the discovery trace, the following module parameters must be set: 79 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 80 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 81 * EACH vport. X MUST also be a power of 2. 82 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 83 * lpfc_debugfs.h . 84 * 85 * slow_ring_trace 86 * This is an ACSII readable file that contains a trace of the last 87 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 88 * To enable the slow ring trace, the following module parameters must be set: 89 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 90 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 91 * the HBA. X MUST also be a power of 2. 92 */ 93 static int lpfc_debugfs_enable = 1; 94 module_param(lpfc_debugfs_enable, int, S_IRUGO); 95 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 96 97 /* This MUST be a power of 2 */ 98 static int lpfc_debugfs_max_disc_trc; 99 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 100 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 101 "Set debugfs discovery trace depth"); 102 103 /* This MUST be a power of 2 */ 104 static int lpfc_debugfs_max_slow_ring_trc; 105 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 106 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 107 "Set debugfs slow ring trace depth"); 108 109 /* This MUST be a power of 2 */ 110 static int lpfc_debugfs_max_nvmeio_trc; 111 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 112 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 113 "Set debugfs NVME IO trace depth"); 114 115 static int lpfc_debugfs_mask_disc_trc; 116 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 117 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 118 "Set debugfs discovery trace mask"); 119 120 #include <linux/debugfs.h> 121 122 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 123 static unsigned long lpfc_debugfs_start_time = 0L; 124 125 /* iDiag */ 126 static struct lpfc_idiag idiag; 127 128 /** 129 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 130 * @vport: The vport to gather the log info from. 131 * @buf: The buffer to dump log into. 132 * @size: The maximum amount of data to process. 133 * 134 * Description: 135 * This routine gathers the lpfc discovery debugfs data from the @vport and 136 * dumps it to @buf up to @size number of bytes. It will start at the next entry 137 * in the log and process the log until the end of the buffer. Then it will 138 * gather from the beginning of the log and process until the current entry. 139 * 140 * Notes: 141 * Discovery logging will be disabled while while this routine dumps the log. 142 * 143 * Return Value: 144 * This routine returns the amount of bytes that were dumped into @buf and will 145 * not exceed @size. 146 **/ 147 static int 148 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 149 { 150 int i, index, len, enable; 151 uint32_t ms; 152 struct lpfc_debugfs_trc *dtp; 153 char *buffer; 154 155 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 156 if (!buffer) 157 return 0; 158 159 enable = lpfc_debugfs_enable; 160 lpfc_debugfs_enable = 0; 161 162 len = 0; 163 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 164 (lpfc_debugfs_max_disc_trc - 1); 165 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 166 dtp = vport->disc_trc + i; 167 if (!dtp->fmt) 168 continue; 169 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 170 snprintf(buffer, 171 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 172 dtp->seq_cnt, ms, dtp->fmt); 173 len += snprintf(buf+len, size-len, buffer, 174 dtp->data1, dtp->data2, dtp->data3); 175 } 176 for (i = 0; i < index; i++) { 177 dtp = vport->disc_trc + i; 178 if (!dtp->fmt) 179 continue; 180 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 181 snprintf(buffer, 182 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 183 dtp->seq_cnt, ms, dtp->fmt); 184 len += snprintf(buf+len, size-len, buffer, 185 dtp->data1, dtp->data2, dtp->data3); 186 } 187 188 lpfc_debugfs_enable = enable; 189 kfree(buffer); 190 191 return len; 192 } 193 194 /** 195 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 196 * @phba: The HBA to gather the log info from. 197 * @buf: The buffer to dump log into. 198 * @size: The maximum amount of data to process. 199 * 200 * Description: 201 * This routine gathers the lpfc slow ring debugfs data from the @phba and 202 * dumps it to @buf up to @size number of bytes. It will start at the next entry 203 * in the log and process the log until the end of the buffer. Then it will 204 * gather from the beginning of the log and process until the current entry. 205 * 206 * Notes: 207 * Slow ring logging will be disabled while while this routine dumps the log. 208 * 209 * Return Value: 210 * This routine returns the amount of bytes that were dumped into @buf and will 211 * not exceed @size. 212 **/ 213 static int 214 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 215 { 216 int i, index, len, enable; 217 uint32_t ms; 218 struct lpfc_debugfs_trc *dtp; 219 char *buffer; 220 221 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 222 if (!buffer) 223 return 0; 224 225 enable = lpfc_debugfs_enable; 226 lpfc_debugfs_enable = 0; 227 228 len = 0; 229 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 230 (lpfc_debugfs_max_slow_ring_trc - 1); 231 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 232 dtp = phba->slow_ring_trc + i; 233 if (!dtp->fmt) 234 continue; 235 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 236 snprintf(buffer, 237 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 238 dtp->seq_cnt, ms, dtp->fmt); 239 len += snprintf(buf+len, size-len, buffer, 240 dtp->data1, dtp->data2, dtp->data3); 241 } 242 for (i = 0; i < index; i++) { 243 dtp = phba->slow_ring_trc + i; 244 if (!dtp->fmt) 245 continue; 246 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 247 snprintf(buffer, 248 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 249 dtp->seq_cnt, ms, dtp->fmt); 250 len += snprintf(buf+len, size-len, buffer, 251 dtp->data1, dtp->data2, dtp->data3); 252 } 253 254 lpfc_debugfs_enable = enable; 255 kfree(buffer); 256 257 return len; 258 } 259 260 static int lpfc_debugfs_last_hbq = -1; 261 262 /** 263 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 264 * @phba: The HBA to gather host buffer info from. 265 * @buf: The buffer to dump log into. 266 * @size: The maximum amount of data to process. 267 * 268 * Description: 269 * This routine dumps the host buffer queue info from the @phba to @buf up to 270 * @size number of bytes. A header that describes the current hbq state will be 271 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 272 * until @size bytes have been dumped or all the hbq info has been dumped. 273 * 274 * Notes: 275 * This routine will rotate through each configured HBQ each time called. 276 * 277 * Return Value: 278 * This routine returns the amount of bytes that were dumped into @buf and will 279 * not exceed @size. 280 **/ 281 static int 282 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 283 { 284 int len = 0; 285 int i, j, found, posted, low; 286 uint32_t phys, raw_index, getidx; 287 struct lpfc_hbq_init *hip; 288 struct hbq_s *hbqs; 289 struct lpfc_hbq_entry *hbqe; 290 struct lpfc_dmabuf *d_buf; 291 struct hbq_dmabuf *hbq_buf; 292 293 if (phba->sli_rev != 3) 294 return 0; 295 296 spin_lock_irq(&phba->hbalock); 297 298 /* toggle between multiple hbqs, if any */ 299 i = lpfc_sli_hbq_count(); 300 if (i > 1) { 301 lpfc_debugfs_last_hbq++; 302 if (lpfc_debugfs_last_hbq >= i) 303 lpfc_debugfs_last_hbq = 0; 304 } 305 else 306 lpfc_debugfs_last_hbq = 0; 307 308 i = lpfc_debugfs_last_hbq; 309 310 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); 311 312 hbqs = &phba->hbqs[i]; 313 posted = 0; 314 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 315 posted++; 316 317 hip = lpfc_hbq_defs[i]; 318 len += snprintf(buf+len, size-len, 319 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 320 hip->hbq_index, hip->profile, hip->rn, 321 hip->buffer_count, hip->init_count, hip->add_count, posted); 322 323 raw_index = phba->hbq_get[i]; 324 getidx = le32_to_cpu(raw_index); 325 len += snprintf(buf+len, size-len, 326 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 327 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 328 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 329 330 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 331 for (j=0; j<hbqs->entry_count; j++) { 332 len += snprintf(buf+len, size-len, 333 "%03d: %08x %04x %05x ", j, 334 le32_to_cpu(hbqe->bde.addrLow), 335 le32_to_cpu(hbqe->bde.tus.w), 336 le32_to_cpu(hbqe->buffer_tag)); 337 i = 0; 338 found = 0; 339 340 /* First calculate if slot has an associated posted buffer */ 341 low = hbqs->hbqPutIdx - posted; 342 if (low >= 0) { 343 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 344 len += snprintf(buf+len, size-len, "Unused\n"); 345 goto skipit; 346 } 347 } 348 else { 349 if ((j >= hbqs->hbqPutIdx) && 350 (j < (hbqs->entry_count+low))) { 351 len += snprintf(buf+len, size-len, "Unused\n"); 352 goto skipit; 353 } 354 } 355 356 /* Get the Buffer info for the posted buffer */ 357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 361 len += snprintf(buf+len, size-len, 362 "Buf%d: %p %06x\n", i, 363 hbq_buf->dbuf.virt, hbq_buf->tag); 364 found = 1; 365 break; 366 } 367 i++; 368 } 369 if (!found) { 370 len += snprintf(buf+len, size-len, "No DMAinfo?\n"); 371 } 372 skipit: 373 hbqe++; 374 if (len > LPFC_HBQINFO_SIZE - 54) 375 break; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 return len; 379 } 380 381 static int lpfc_debugfs_last_hba_slim_off; 382 383 /** 384 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 385 * @phba: The HBA to gather SLIM info from. 386 * @buf: The buffer to dump log into. 387 * @size: The maximum amount of data to process. 388 * 389 * Description: 390 * This routine dumps the current contents of HBA SLIM for the HBA associated 391 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 392 * 393 * Notes: 394 * This routine will only dump up to 1024 bytes of data each time called and 395 * should be called multiple times to dump the entire HBA SLIM. 396 * 397 * Return Value: 398 * This routine returns the amount of bytes that were dumped into @buf and will 399 * not exceed @size. 400 **/ 401 static int 402 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 403 { 404 int len = 0; 405 int i, off; 406 uint32_t *ptr; 407 char *buffer; 408 409 buffer = kmalloc(1024, GFP_KERNEL); 410 if (!buffer) 411 return 0; 412 413 off = 0; 414 spin_lock_irq(&phba->hbalock); 415 416 len += snprintf(buf+len, size-len, "HBA SLIM\n"); 417 lpfc_memcpy_from_slim(buffer, 418 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 419 420 ptr = (uint32_t *)&buffer[0]; 421 off = lpfc_debugfs_last_hba_slim_off; 422 423 /* Set it up for the next time */ 424 lpfc_debugfs_last_hba_slim_off += 1024; 425 if (lpfc_debugfs_last_hba_slim_off >= 4096) 426 lpfc_debugfs_last_hba_slim_off = 0; 427 428 i = 1024; 429 while (i > 0) { 430 len += snprintf(buf+len, size-len, 431 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 432 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 433 *(ptr+5), *(ptr+6), *(ptr+7)); 434 ptr += 8; 435 i -= (8 * sizeof(uint32_t)); 436 off += (8 * sizeof(uint32_t)); 437 } 438 439 spin_unlock_irq(&phba->hbalock); 440 kfree(buffer); 441 442 return len; 443 } 444 445 /** 446 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 447 * @phba: The HBA to gather Host SLIM info from. 448 * @buf: The buffer to dump log into. 449 * @size: The maximum amount of data to process. 450 * 451 * Description: 452 * This routine dumps the current contents of host SLIM for the host associated 453 * with @phba to @buf up to @size bytes of data. The dump will contain the 454 * Mailbox, PCB, Rings, and Registers that are located in host memory. 455 * 456 * Return Value: 457 * This routine returns the amount of bytes that were dumped into @buf and will 458 * not exceed @size. 459 **/ 460 static int 461 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 462 { 463 int len = 0; 464 int i, off; 465 uint32_t word0, word1, word2, word3; 466 uint32_t *ptr; 467 struct lpfc_pgp *pgpp; 468 struct lpfc_sli *psli = &phba->sli; 469 struct lpfc_sli_ring *pring; 470 471 off = 0; 472 spin_lock_irq(&phba->hbalock); 473 474 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 475 ptr = (uint32_t *)phba->slim2p.virt; 476 i = sizeof(MAILBOX_t); 477 while (i > 0) { 478 len += snprintf(buf+len, size-len, 479 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 480 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 481 *(ptr+5), *(ptr+6), *(ptr+7)); 482 ptr += 8; 483 i -= (8 * sizeof(uint32_t)); 484 off += (8 * sizeof(uint32_t)); 485 } 486 487 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 488 ptr = (uint32_t *)phba->pcb; 489 i = sizeof(PCB_t); 490 while (i > 0) { 491 len += snprintf(buf+len, size-len, 492 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 493 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 494 *(ptr+5), *(ptr+6), *(ptr+7)); 495 ptr += 8; 496 i -= (8 * sizeof(uint32_t)); 497 off += (8 * sizeof(uint32_t)); 498 } 499 500 if (phba->sli_rev <= LPFC_SLI_REV3) { 501 for (i = 0; i < 4; i++) { 502 pgpp = &phba->port_gp[i]; 503 pring = &psli->sli3_ring[i]; 504 len += snprintf(buf+len, size-len, 505 "Ring %d: CMD GetInx:%d " 506 "(Max:%d Next:%d " 507 "Local:%d flg:x%x) " 508 "RSP PutInx:%d Max:%d\n", 509 i, pgpp->cmdGetInx, 510 pring->sli.sli3.numCiocb, 511 pring->sli.sli3.next_cmdidx, 512 pring->sli.sli3.local_getidx, 513 pring->flag, pgpp->rspPutInx, 514 pring->sli.sli3.numRiocb); 515 } 516 517 word0 = readl(phba->HAregaddr); 518 word1 = readl(phba->CAregaddr); 519 word2 = readl(phba->HSregaddr); 520 word3 = readl(phba->HCregaddr); 521 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 522 "HC:%08x\n", word0, word1, word2, word3); 523 } 524 spin_unlock_irq(&phba->hbalock); 525 return len; 526 } 527 528 /** 529 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 530 * @vport: The vport to gather target node info from. 531 * @buf: The buffer to dump log into. 532 * @size: The maximum amount of data to process. 533 * 534 * Description: 535 * This routine dumps the current target node list associated with @vport to 536 * @buf up to @size bytes of data. Each node entry in the dump will contain a 537 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 538 * 539 * Return Value: 540 * This routine returns the amount of bytes that were dumped into @buf and will 541 * not exceed @size. 542 **/ 543 static int 544 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 545 { 546 int len = 0; 547 int i, iocnt, outio, cnt; 548 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 549 struct lpfc_hba *phba = vport->phba; 550 struct lpfc_nodelist *ndlp; 551 unsigned char *statep; 552 struct nvme_fc_local_port *localport; 553 struct nvme_fc_remote_port *nrport = NULL; 554 struct lpfc_nvme_rport *rport; 555 556 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 557 outio = 0; 558 559 len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 560 spin_lock_irq(shost->host_lock); 561 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 562 iocnt = 0; 563 if (!cnt) { 564 len += snprintf(buf+len, size-len, 565 "Missing Nodelist Entries\n"); 566 break; 567 } 568 cnt--; 569 switch (ndlp->nlp_state) { 570 case NLP_STE_UNUSED_NODE: 571 statep = "UNUSED"; 572 break; 573 case NLP_STE_PLOGI_ISSUE: 574 statep = "PLOGI "; 575 break; 576 case NLP_STE_ADISC_ISSUE: 577 statep = "ADISC "; 578 break; 579 case NLP_STE_REG_LOGIN_ISSUE: 580 statep = "REGLOG"; 581 break; 582 case NLP_STE_PRLI_ISSUE: 583 statep = "PRLI "; 584 break; 585 case NLP_STE_LOGO_ISSUE: 586 statep = "LOGO "; 587 break; 588 case NLP_STE_UNMAPPED_NODE: 589 statep = "UNMAP "; 590 iocnt = 1; 591 break; 592 case NLP_STE_MAPPED_NODE: 593 statep = "MAPPED"; 594 iocnt = 1; 595 break; 596 case NLP_STE_NPR_NODE: 597 statep = "NPR "; 598 break; 599 default: 600 statep = "UNKNOWN"; 601 } 602 len += snprintf(buf+len, size-len, "%s DID:x%06x ", 603 statep, ndlp->nlp_DID); 604 len += snprintf(buf+len, size-len, 605 "WWPN x%llx ", 606 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 607 len += snprintf(buf+len, size-len, 608 "WWNN x%llx ", 609 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 610 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 611 len += snprintf(buf+len, size-len, "RPI:%03d ", 612 ndlp->nlp_rpi); 613 else 614 len += snprintf(buf+len, size-len, "RPI:none "); 615 len += snprintf(buf+len, size-len, "flag:x%08x ", 616 ndlp->nlp_flag); 617 if (!ndlp->nlp_type) 618 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); 619 if (ndlp->nlp_type & NLP_FC_NODE) 620 len += snprintf(buf+len, size-len, "FC_NODE "); 621 if (ndlp->nlp_type & NLP_FABRIC) { 622 len += snprintf(buf+len, size-len, "FABRIC "); 623 iocnt = 0; 624 } 625 if (ndlp->nlp_type & NLP_FCP_TARGET) 626 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", 627 ndlp->nlp_sid); 628 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 629 len += snprintf(buf+len, size-len, "FCP_INITIATOR "); 630 if (ndlp->nlp_type & NLP_NVME_TARGET) 631 len += snprintf(buf + len, 632 size - len, "NVME_TGT sid:%d ", 633 NLP_NO_SID); 634 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 635 len += snprintf(buf + len, 636 size - len, "NVME_INITIATOR "); 637 len += snprintf(buf+len, size-len, "usgmap:%x ", 638 ndlp->nlp_usg_map); 639 len += snprintf(buf+len, size-len, "refcnt:%x", 640 kref_read(&ndlp->kref)); 641 if (iocnt) { 642 i = atomic_read(&ndlp->cmd_pending); 643 len += snprintf(buf + len, size - len, 644 " OutIO:x%x Qdepth x%x", 645 i, ndlp->cmd_qdepth); 646 outio += i; 647 } 648 len += snprintf(buf+len, size-len, "\n"); 649 } 650 spin_unlock_irq(shost->host_lock); 651 652 len += snprintf(buf + len, size - len, 653 "\nOutstanding IO x%x\n", outio); 654 655 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 656 len += snprintf(buf + len, size - len, 657 "\nNVME Targetport Entry ...\n"); 658 659 /* Port state is only one of two values for now. */ 660 if (phba->targetport->port_id) 661 statep = "REGISTERED"; 662 else 663 statep = "INIT"; 664 len += snprintf(buf + len, size - len, 665 "TGT WWNN x%llx WWPN x%llx State %s\n", 666 wwn_to_u64(vport->fc_nodename.u.wwn), 667 wwn_to_u64(vport->fc_portname.u.wwn), 668 statep); 669 len += snprintf(buf + len, size - len, 670 " Targetport DID x%06x\n", 671 phba->targetport->port_id); 672 goto out_exit; 673 } 674 675 len += snprintf(buf + len, size - len, 676 "\nNVME Lport/Rport Entries ...\n"); 677 678 localport = vport->localport; 679 if (!localport) 680 goto out_exit; 681 682 spin_lock_irq(shost->host_lock); 683 684 /* Port state is only one of two values for now. */ 685 if (localport->port_id) 686 statep = "ONLINE"; 687 else 688 statep = "UNKNOWN "; 689 690 len += snprintf(buf + len, size - len, 691 "Lport DID x%06x PortState %s\n", 692 localport->port_id, statep); 693 694 len += snprintf(buf + len, size - len, "\tRport List:\n"); 695 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 696 /* local short-hand pointer. */ 697 spin_lock(&phba->hbalock); 698 rport = lpfc_ndlp_get_nrport(ndlp); 699 if (rport) 700 nrport = rport->remoteport; 701 spin_unlock(&phba->hbalock); 702 if (!nrport) 703 continue; 704 705 /* Port state is only one of two values for now. */ 706 switch (nrport->port_state) { 707 case FC_OBJSTATE_ONLINE: 708 statep = "ONLINE"; 709 break; 710 case FC_OBJSTATE_UNKNOWN: 711 statep = "UNKNOWN "; 712 break; 713 default: 714 statep = "UNSUPPORTED"; 715 break; 716 } 717 718 /* Tab in to show lport ownership. */ 719 len += snprintf(buf + len, size - len, 720 "\t%s Port ID:x%06x ", 721 statep, nrport->port_id); 722 len += snprintf(buf + len, size - len, "WWPN x%llx ", 723 nrport->port_name); 724 len += snprintf(buf + len, size - len, "WWNN x%llx ", 725 nrport->node_name); 726 727 /* An NVME rport can have multiple roles. */ 728 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 729 len += snprintf(buf + len, size - len, 730 "INITIATOR "); 731 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 732 len += snprintf(buf + len, size - len, 733 "TARGET "); 734 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 735 len += snprintf(buf + len, size - len, 736 "DISCSRVC "); 737 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 738 FC_PORT_ROLE_NVME_TARGET | 739 FC_PORT_ROLE_NVME_DISCOVERY)) 740 len += snprintf(buf + len, size - len, 741 "UNKNOWN ROLE x%x", 742 nrport->port_role); 743 /* Terminate the string. */ 744 len += snprintf(buf + len, size - len, "\n"); 745 } 746 747 spin_unlock_irq(shost->host_lock); 748 out_exit: 749 return len; 750 } 751 752 /** 753 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 754 * @vport: The vport to gather target node info from. 755 * @buf: The buffer to dump log into. 756 * @size: The maximum amount of data to process. 757 * 758 * Description: 759 * This routine dumps the NVME statistics associated with @vport 760 * 761 * Return Value: 762 * This routine returns the amount of bytes that were dumped into @buf and will 763 * not exceed @size. 764 **/ 765 static int 766 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 767 { 768 struct lpfc_hba *phba = vport->phba; 769 struct lpfc_nvmet_tgtport *tgtp; 770 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp; 771 struct nvme_fc_local_port *localport; 772 struct lpfc_nvme_ctrl_stat *cstat; 773 struct lpfc_nvme_lport *lport; 774 uint64_t data1, data2, data3; 775 uint64_t tot, totin, totout; 776 int cnt, i, maxch; 777 int len = 0; 778 779 if (phba->nvmet_support) { 780 if (!phba->targetport) 781 return len; 782 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 783 len += snprintf(buf + len, size - len, 784 "\nNVME Targetport Statistics\n"); 785 786 len += snprintf(buf + len, size - len, 787 "LS: Rcv %08x Drop %08x Abort %08x\n", 788 atomic_read(&tgtp->rcv_ls_req_in), 789 atomic_read(&tgtp->rcv_ls_req_drop), 790 atomic_read(&tgtp->xmt_ls_abort)); 791 if (atomic_read(&tgtp->rcv_ls_req_in) != 792 atomic_read(&tgtp->rcv_ls_req_out)) { 793 len += snprintf(buf + len, size - len, 794 "Rcv LS: in %08x != out %08x\n", 795 atomic_read(&tgtp->rcv_ls_req_in), 796 atomic_read(&tgtp->rcv_ls_req_out)); 797 } 798 799 len += snprintf(buf + len, size - len, 800 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 801 atomic_read(&tgtp->xmt_ls_rsp), 802 atomic_read(&tgtp->xmt_ls_drop), 803 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 804 805 len += snprintf(buf + len, size - len, 806 "LS: RSP Abort %08x xb %08x Err %08x\n", 807 atomic_read(&tgtp->xmt_ls_rsp_aborted), 808 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 809 atomic_read(&tgtp->xmt_ls_rsp_error)); 810 811 len += snprintf(buf + len, size - len, 812 "FCP: Rcv %08x Defer %08x Release %08x " 813 "Drop %08x\n", 814 atomic_read(&tgtp->rcv_fcp_cmd_in), 815 atomic_read(&tgtp->rcv_fcp_cmd_defer), 816 atomic_read(&tgtp->xmt_fcp_release), 817 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 818 819 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 820 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 821 len += snprintf(buf + len, size - len, 822 "Rcv FCP: in %08x != out %08x\n", 823 atomic_read(&tgtp->rcv_fcp_cmd_in), 824 atomic_read(&tgtp->rcv_fcp_cmd_out)); 825 } 826 827 len += snprintf(buf + len, size - len, 828 "FCP Rsp: read %08x readrsp %08x " 829 "write %08x rsp %08x\n", 830 atomic_read(&tgtp->xmt_fcp_read), 831 atomic_read(&tgtp->xmt_fcp_read_rsp), 832 atomic_read(&tgtp->xmt_fcp_write), 833 atomic_read(&tgtp->xmt_fcp_rsp)); 834 835 len += snprintf(buf + len, size - len, 836 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 837 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 838 atomic_read(&tgtp->xmt_fcp_rsp_error), 839 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 840 841 len += snprintf(buf + len, size - len, 842 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 843 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 844 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 845 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 846 847 len += snprintf(buf + len, size - len, 848 "ABORT: Xmt %08x Cmpl %08x\n", 849 atomic_read(&tgtp->xmt_fcp_abort), 850 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 851 852 len += snprintf(buf + len, size - len, 853 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 854 atomic_read(&tgtp->xmt_abort_sol), 855 atomic_read(&tgtp->xmt_abort_unsol), 856 atomic_read(&tgtp->xmt_abort_rsp), 857 atomic_read(&tgtp->xmt_abort_rsp_error)); 858 859 len += snprintf(buf + len, size - len, "\n"); 860 861 cnt = 0; 862 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 863 list_for_each_entry_safe(ctxp, next_ctxp, 864 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 865 list) { 866 cnt++; 867 } 868 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 869 if (cnt) { 870 len += snprintf(buf + len, size - len, 871 "ABORT: %d ctx entries\n", cnt); 872 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 873 list_for_each_entry_safe(ctxp, next_ctxp, 874 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 875 list) { 876 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 877 break; 878 len += snprintf(buf + len, size - len, 879 "Entry: oxid %x state %x " 880 "flag %x\n", 881 ctxp->oxid, ctxp->state, 882 ctxp->flag); 883 } 884 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 885 } 886 887 /* Calculate outstanding IOs */ 888 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 889 tot += atomic_read(&tgtp->xmt_fcp_release); 890 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 891 892 len += snprintf(buf + len, size - len, 893 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 894 "CTX Outstanding %08llx\n", 895 phba->sli4_hba.nvmet_xri_cnt, 896 phba->sli4_hba.nvmet_io_wait_cnt, 897 phba->sli4_hba.nvmet_io_wait_total, 898 tot); 899 } else { 900 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 901 return len; 902 903 localport = vport->localport; 904 if (!localport) 905 return len; 906 lport = (struct lpfc_nvme_lport *)localport->private; 907 if (!lport) 908 return len; 909 910 len += snprintf(buf + len, size - len, 911 "\nNVME Lport Statistics\n"); 912 913 len += snprintf(buf + len, size - len, 914 "LS: Xmt %016x Cmpl %016x\n", 915 atomic_read(&lport->fc4NvmeLsRequests), 916 atomic_read(&lport->fc4NvmeLsCmpls)); 917 918 if (phba->cfg_nvme_io_channel < 32) 919 maxch = phba->cfg_nvme_io_channel; 920 else 921 maxch = 32; 922 totin = 0; 923 totout = 0; 924 for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 925 cstat = &lport->cstat[i]; 926 tot = atomic_read(&cstat->fc4NvmeIoCmpls); 927 totin += tot; 928 data1 = atomic_read(&cstat->fc4NvmeInputRequests); 929 data2 = atomic_read(&cstat->fc4NvmeOutputRequests); 930 data3 = atomic_read(&cstat->fc4NvmeControlRequests); 931 totout += (data1 + data2 + data3); 932 933 /* Limit to 32, debugfs display buffer limitation */ 934 if (i >= 32) 935 continue; 936 937 len += snprintf(buf + len, PAGE_SIZE - len, 938 "FCP (%d): Rd %016llx Wr %016llx " 939 "IO %016llx ", 940 i, data1, data2, data3); 941 len += snprintf(buf + len, PAGE_SIZE - len, 942 "Cmpl %016llx OutIO %016llx\n", 943 tot, ((data1 + data2 + data3) - tot)); 944 } 945 len += snprintf(buf + len, PAGE_SIZE - len, 946 "Total FCP Cmpl %016llx Issue %016llx " 947 "OutIO %016llx\n", 948 totin, totout, totout - totin); 949 950 len += snprintf(buf + len, size - len, 951 "LS Xmt Err: Abrt %08x Err %08x " 952 "Cmpl Err: xb %08x Err %08x\n", 953 atomic_read(&lport->xmt_ls_abort), 954 atomic_read(&lport->xmt_ls_err), 955 atomic_read(&lport->cmpl_ls_xb), 956 atomic_read(&lport->cmpl_ls_err)); 957 958 len += snprintf(buf + len, size - len, 959 "FCP Xmt Err: noxri %06x nondlp %06x " 960 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 961 atomic_read(&lport->xmt_fcp_noxri), 962 atomic_read(&lport->xmt_fcp_bad_ndlp), 963 atomic_read(&lport->xmt_fcp_qdepth), 964 atomic_read(&lport->xmt_fcp_wqerr), 965 atomic_read(&lport->xmt_fcp_err), 966 atomic_read(&lport->xmt_fcp_abort)); 967 968 len += snprintf(buf + len, size - len, 969 "FCP Cmpl Err: xb %08x Err %08x\n", 970 atomic_read(&lport->cmpl_fcp_xb), 971 atomic_read(&lport->cmpl_fcp_err)); 972 973 } 974 975 return len; 976 } 977 978 979 /** 980 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer 981 * @vport: The vport to gather target node info from. 982 * @buf: The buffer to dump log into. 983 * @size: The maximum amount of data to process. 984 * 985 * Description: 986 * This routine dumps the NVME statistics associated with @vport 987 * 988 * Return Value: 989 * This routine returns the amount of bytes that were dumped into @buf and will 990 * not exceed @size. 991 **/ 992 static int 993 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size) 994 { 995 struct lpfc_hba *phba = vport->phba; 996 int len = 0; 997 998 if (phba->nvmet_support == 0) { 999 /* NVME Initiator */ 1000 len += snprintf(buf + len, PAGE_SIZE - len, 1001 "ktime %s: Total Samples: %lld\n", 1002 (phba->ktime_on ? "Enabled" : "Disabled"), 1003 phba->ktime_data_samples); 1004 if (phba->ktime_data_samples == 0) 1005 return len; 1006 1007 len += snprintf( 1008 buf + len, PAGE_SIZE - len, 1009 "Segment 1: Last NVME Cmd cmpl " 1010 "done -to- Start of next NVME cnd (in driver)\n"); 1011 len += snprintf( 1012 buf + len, PAGE_SIZE - len, 1013 "avg:%08lld min:%08lld max %08lld\n", 1014 div_u64(phba->ktime_seg1_total, 1015 phba->ktime_data_samples), 1016 phba->ktime_seg1_min, 1017 phba->ktime_seg1_max); 1018 len += snprintf( 1019 buf + len, PAGE_SIZE - len, 1020 "Segment 2: Driver start of NVME cmd " 1021 "-to- Firmware WQ doorbell\n"); 1022 len += snprintf( 1023 buf + len, PAGE_SIZE - len, 1024 "avg:%08lld min:%08lld max %08lld\n", 1025 div_u64(phba->ktime_seg2_total, 1026 phba->ktime_data_samples), 1027 phba->ktime_seg2_min, 1028 phba->ktime_seg2_max); 1029 len += snprintf( 1030 buf + len, PAGE_SIZE - len, 1031 "Segment 3: Firmware WQ doorbell -to- " 1032 "MSI-X ISR cmpl\n"); 1033 len += snprintf( 1034 buf + len, PAGE_SIZE - len, 1035 "avg:%08lld min:%08lld max %08lld\n", 1036 div_u64(phba->ktime_seg3_total, 1037 phba->ktime_data_samples), 1038 phba->ktime_seg3_min, 1039 phba->ktime_seg3_max); 1040 len += snprintf( 1041 buf + len, PAGE_SIZE - len, 1042 "Segment 4: MSI-X ISR cmpl -to- " 1043 "NVME cmpl done\n"); 1044 len += snprintf( 1045 buf + len, PAGE_SIZE - len, 1046 "avg:%08lld min:%08lld max %08lld\n", 1047 div_u64(phba->ktime_seg4_total, 1048 phba->ktime_data_samples), 1049 phba->ktime_seg4_min, 1050 phba->ktime_seg4_max); 1051 len += snprintf( 1052 buf + len, PAGE_SIZE - len, 1053 "Total IO avg time: %08lld\n", 1054 div_u64(phba->ktime_seg1_total + 1055 phba->ktime_seg2_total + 1056 phba->ktime_seg3_total + 1057 phba->ktime_seg4_total, 1058 phba->ktime_data_samples)); 1059 return len; 1060 } 1061 1062 /* NVME Target */ 1063 len += snprintf(buf + len, PAGE_SIZE-len, 1064 "ktime %s: Total Samples: %lld %lld\n", 1065 (phba->ktime_on ? "Enabled" : "Disabled"), 1066 phba->ktime_data_samples, 1067 phba->ktime_status_samples); 1068 if (phba->ktime_data_samples == 0) 1069 return len; 1070 1071 len += snprintf(buf + len, PAGE_SIZE-len, 1072 "Segment 1: MSI-X ISR Rcv cmd -to- " 1073 "cmd pass to NVME Layer\n"); 1074 len += snprintf(buf + len, PAGE_SIZE-len, 1075 "avg:%08lld min:%08lld max %08lld\n", 1076 div_u64(phba->ktime_seg1_total, 1077 phba->ktime_data_samples), 1078 phba->ktime_seg1_min, 1079 phba->ktime_seg1_max); 1080 len += snprintf(buf + len, PAGE_SIZE-len, 1081 "Segment 2: cmd pass to NVME Layer- " 1082 "-to- Driver rcv cmd OP (action)\n"); 1083 len += snprintf(buf + len, PAGE_SIZE-len, 1084 "avg:%08lld min:%08lld max %08lld\n", 1085 div_u64(phba->ktime_seg2_total, 1086 phba->ktime_data_samples), 1087 phba->ktime_seg2_min, 1088 phba->ktime_seg2_max); 1089 len += snprintf(buf + len, PAGE_SIZE-len, 1090 "Segment 3: Driver rcv cmd OP -to- " 1091 "Firmware WQ doorbell: cmd\n"); 1092 len += snprintf(buf + len, PAGE_SIZE-len, 1093 "avg:%08lld min:%08lld max %08lld\n", 1094 div_u64(phba->ktime_seg3_total, 1095 phba->ktime_data_samples), 1096 phba->ktime_seg3_min, 1097 phba->ktime_seg3_max); 1098 len += snprintf(buf + len, PAGE_SIZE-len, 1099 "Segment 4: Firmware WQ doorbell: cmd " 1100 "-to- MSI-X ISR for cmd cmpl\n"); 1101 len += snprintf(buf + len, PAGE_SIZE-len, 1102 "avg:%08lld min:%08lld max %08lld\n", 1103 div_u64(phba->ktime_seg4_total, 1104 phba->ktime_data_samples), 1105 phba->ktime_seg4_min, 1106 phba->ktime_seg4_max); 1107 len += snprintf(buf + len, PAGE_SIZE-len, 1108 "Segment 5: MSI-X ISR for cmd cmpl " 1109 "-to- NVME layer passed cmd done\n"); 1110 len += snprintf(buf + len, PAGE_SIZE-len, 1111 "avg:%08lld min:%08lld max %08lld\n", 1112 div_u64(phba->ktime_seg5_total, 1113 phba->ktime_data_samples), 1114 phba->ktime_seg5_min, 1115 phba->ktime_seg5_max); 1116 1117 if (phba->ktime_status_samples == 0) { 1118 len += snprintf(buf + len, PAGE_SIZE-len, 1119 "Total: cmd received by MSI-X ISR " 1120 "-to- cmd completed on wire\n"); 1121 len += snprintf(buf + len, PAGE_SIZE-len, 1122 "avg:%08lld min:%08lld " 1123 "max %08lld\n", 1124 div_u64(phba->ktime_seg10_total, 1125 phba->ktime_data_samples), 1126 phba->ktime_seg10_min, 1127 phba->ktime_seg10_max); 1128 return len; 1129 } 1130 1131 len += snprintf(buf + len, PAGE_SIZE-len, 1132 "Segment 6: NVME layer passed cmd done " 1133 "-to- Driver rcv rsp status OP\n"); 1134 len += snprintf(buf + len, PAGE_SIZE-len, 1135 "avg:%08lld min:%08lld max %08lld\n", 1136 div_u64(phba->ktime_seg6_total, 1137 phba->ktime_status_samples), 1138 phba->ktime_seg6_min, 1139 phba->ktime_seg6_max); 1140 len += snprintf(buf + len, PAGE_SIZE-len, 1141 "Segment 7: Driver rcv rsp status OP " 1142 "-to- Firmware WQ doorbell: status\n"); 1143 len += snprintf(buf + len, PAGE_SIZE-len, 1144 "avg:%08lld min:%08lld max %08lld\n", 1145 div_u64(phba->ktime_seg7_total, 1146 phba->ktime_status_samples), 1147 phba->ktime_seg7_min, 1148 phba->ktime_seg7_max); 1149 len += snprintf(buf + len, PAGE_SIZE-len, 1150 "Segment 8: Firmware WQ doorbell: status" 1151 " -to- MSI-X ISR for status cmpl\n"); 1152 len += snprintf(buf + len, PAGE_SIZE-len, 1153 "avg:%08lld min:%08lld max %08lld\n", 1154 div_u64(phba->ktime_seg8_total, 1155 phba->ktime_status_samples), 1156 phba->ktime_seg8_min, 1157 phba->ktime_seg8_max); 1158 len += snprintf(buf + len, PAGE_SIZE-len, 1159 "Segment 9: MSI-X ISR for status cmpl " 1160 "-to- NVME layer passed status done\n"); 1161 len += snprintf(buf + len, PAGE_SIZE-len, 1162 "avg:%08lld min:%08lld max %08lld\n", 1163 div_u64(phba->ktime_seg9_total, 1164 phba->ktime_status_samples), 1165 phba->ktime_seg9_min, 1166 phba->ktime_seg9_max); 1167 len += snprintf(buf + len, PAGE_SIZE-len, 1168 "Total: cmd received by MSI-X ISR -to- " 1169 "cmd completed on wire\n"); 1170 len += snprintf(buf + len, PAGE_SIZE-len, 1171 "avg:%08lld min:%08lld max %08lld\n", 1172 div_u64(phba->ktime_seg10_total, 1173 phba->ktime_status_samples), 1174 phba->ktime_seg10_min, 1175 phba->ktime_seg10_max); 1176 return len; 1177 } 1178 1179 /** 1180 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1181 * @phba: The phba to gather target node info from. 1182 * @buf: The buffer to dump log into. 1183 * @size: The maximum amount of data to process. 1184 * 1185 * Description: 1186 * This routine dumps the NVME IO trace associated with @phba 1187 * 1188 * Return Value: 1189 * This routine returns the amount of bytes that were dumped into @buf and will 1190 * not exceed @size. 1191 **/ 1192 static int 1193 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1194 { 1195 struct lpfc_debugfs_nvmeio_trc *dtp; 1196 int i, state, index, skip; 1197 int len = 0; 1198 1199 state = phba->nvmeio_trc_on; 1200 1201 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1202 (phba->nvmeio_trc_size - 1); 1203 skip = phba->nvmeio_trc_output_idx; 1204 1205 len += snprintf(buf + len, size - len, 1206 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1207 (phba->nvmet_support ? "NVME" : "NVMET"), 1208 (state ? "Enabled" : "Disabled"), 1209 index, skip, phba->nvmeio_trc_size); 1210 1211 if (!phba->nvmeio_trc || state) 1212 return len; 1213 1214 /* trace MUST bhe off to continue */ 1215 1216 for (i = index; i < phba->nvmeio_trc_size; i++) { 1217 if (skip) { 1218 skip--; 1219 continue; 1220 } 1221 dtp = phba->nvmeio_trc + i; 1222 phba->nvmeio_trc_output_idx++; 1223 1224 if (!dtp->fmt) 1225 continue; 1226 1227 len += snprintf(buf + len, size - len, dtp->fmt, 1228 dtp->data1, dtp->data2, dtp->data3); 1229 1230 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1231 phba->nvmeio_trc_output_idx = 0; 1232 len += snprintf(buf + len, size - len, 1233 "Trace Complete\n"); 1234 goto out; 1235 } 1236 1237 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1238 len += snprintf(buf + len, size - len, 1239 "Trace Continue (%d of %d)\n", 1240 phba->nvmeio_trc_output_idx, 1241 phba->nvmeio_trc_size); 1242 goto out; 1243 } 1244 } 1245 for (i = 0; i < index; i++) { 1246 if (skip) { 1247 skip--; 1248 continue; 1249 } 1250 dtp = phba->nvmeio_trc + i; 1251 phba->nvmeio_trc_output_idx++; 1252 1253 if (!dtp->fmt) 1254 continue; 1255 1256 len += snprintf(buf + len, size - len, dtp->fmt, 1257 dtp->data1, dtp->data2, dtp->data3); 1258 1259 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1260 phba->nvmeio_trc_output_idx = 0; 1261 len += snprintf(buf + len, size - len, 1262 "Trace Complete\n"); 1263 goto out; 1264 } 1265 1266 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1267 len += snprintf(buf + len, size - len, 1268 "Trace Continue (%d of %d)\n", 1269 phba->nvmeio_trc_output_idx, 1270 phba->nvmeio_trc_size); 1271 goto out; 1272 } 1273 } 1274 1275 len += snprintf(buf + len, size - len, 1276 "Trace Done\n"); 1277 out: 1278 return len; 1279 } 1280 1281 /** 1282 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer 1283 * @vport: The vport to gather target node info from. 1284 * @buf: The buffer to dump log into. 1285 * @size: The maximum amount of data to process. 1286 * 1287 * Description: 1288 * This routine dumps the NVME statistics associated with @vport 1289 * 1290 * Return Value: 1291 * This routine returns the amount of bytes that were dumped into @buf and will 1292 * not exceed @size. 1293 **/ 1294 static int 1295 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size) 1296 { 1297 struct lpfc_hba *phba = vport->phba; 1298 int i; 1299 int len = 0; 1300 uint32_t tot_xmt = 0; 1301 uint32_t tot_rcv = 0; 1302 uint32_t tot_cmpl = 0; 1303 uint32_t tot_ccmpl = 0; 1304 1305 if (phba->nvmet_support == 0) { 1306 /* NVME Initiator */ 1307 len += snprintf(buf + len, PAGE_SIZE - len, 1308 "CPUcheck %s\n", 1309 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ? 1310 "Enabled" : "Disabled")); 1311 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1312 if (i >= LPFC_CHECK_CPU_CNT) 1313 break; 1314 len += snprintf(buf + len, PAGE_SIZE - len, 1315 "%02d: xmit x%08x cmpl x%08x\n", 1316 i, phba->cpucheck_xmt_io[i], 1317 phba->cpucheck_cmpl_io[i]); 1318 tot_xmt += phba->cpucheck_xmt_io[i]; 1319 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1320 } 1321 len += snprintf(buf + len, PAGE_SIZE - len, 1322 "tot:xmit x%08x cmpl x%08x\n", 1323 tot_xmt, tot_cmpl); 1324 return len; 1325 } 1326 1327 /* NVME Target */ 1328 len += snprintf(buf + len, PAGE_SIZE - len, 1329 "CPUcheck %s ", 1330 (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ? 1331 "IO Enabled - " : "IO Disabled - ")); 1332 len += snprintf(buf + len, PAGE_SIZE - len, 1333 "%s\n", 1334 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ? 1335 "Rcv Enabled\n" : "Rcv Disabled\n")); 1336 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 1337 if (i >= LPFC_CHECK_CPU_CNT) 1338 break; 1339 len += snprintf(buf + len, PAGE_SIZE - len, 1340 "%02d: xmit x%08x ccmpl x%08x " 1341 "cmpl x%08x rcv x%08x\n", 1342 i, phba->cpucheck_xmt_io[i], 1343 phba->cpucheck_ccmpl_io[i], 1344 phba->cpucheck_cmpl_io[i], 1345 phba->cpucheck_rcv_io[i]); 1346 tot_xmt += phba->cpucheck_xmt_io[i]; 1347 tot_rcv += phba->cpucheck_rcv_io[i]; 1348 tot_cmpl += phba->cpucheck_cmpl_io[i]; 1349 tot_ccmpl += phba->cpucheck_ccmpl_io[i]; 1350 } 1351 len += snprintf(buf + len, PAGE_SIZE - len, 1352 "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n", 1353 tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv); 1354 return len; 1355 } 1356 1357 #endif 1358 1359 /** 1360 * lpfc_debugfs_disc_trc - Store discovery trace log 1361 * @vport: The vport to associate this trace string with for retrieval. 1362 * @mask: Log entry classification. 1363 * @fmt: Format string to be displayed when dumping the log. 1364 * @data1: 1st data parameter to be applied to @fmt. 1365 * @data2: 2nd data parameter to be applied to @fmt. 1366 * @data3: 3rd data parameter to be applied to @fmt. 1367 * 1368 * Description: 1369 * This routine is used by the driver code to add a debugfs log entry to the 1370 * discovery trace buffer associated with @vport. Only entries with a @mask that 1371 * match the current debugfs discovery mask will be saved. Entries that do not 1372 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1373 * printf when displaying the log. 1374 **/ 1375 inline void 1376 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1377 uint32_t data1, uint32_t data2, uint32_t data3) 1378 { 1379 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1380 struct lpfc_debugfs_trc *dtp; 1381 int index; 1382 1383 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1384 return; 1385 1386 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1387 !vport || !vport->disc_trc) 1388 return; 1389 1390 index = atomic_inc_return(&vport->disc_trc_cnt) & 1391 (lpfc_debugfs_max_disc_trc - 1); 1392 dtp = vport->disc_trc + index; 1393 dtp->fmt = fmt; 1394 dtp->data1 = data1; 1395 dtp->data2 = data2; 1396 dtp->data3 = data3; 1397 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1398 dtp->jif = jiffies; 1399 #endif 1400 return; 1401 } 1402 1403 /** 1404 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1405 * @phba: The phba to associate this trace string with for retrieval. 1406 * @fmt: Format string to be displayed when dumping the log. 1407 * @data1: 1st data parameter to be applied to @fmt. 1408 * @data2: 2nd data parameter to be applied to @fmt. 1409 * @data3: 3rd data parameter to be applied to @fmt. 1410 * 1411 * Description: 1412 * This routine is used by the driver code to add a debugfs log entry to the 1413 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1414 * @data3 are used like printf when displaying the log. 1415 **/ 1416 inline void 1417 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1418 uint32_t data1, uint32_t data2, uint32_t data3) 1419 { 1420 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1421 struct lpfc_debugfs_trc *dtp; 1422 int index; 1423 1424 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1425 !phba || !phba->slow_ring_trc) 1426 return; 1427 1428 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1429 (lpfc_debugfs_max_slow_ring_trc - 1); 1430 dtp = phba->slow_ring_trc + index; 1431 dtp->fmt = fmt; 1432 dtp->data1 = data1; 1433 dtp->data2 = data2; 1434 dtp->data3 = data3; 1435 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1436 dtp->jif = jiffies; 1437 #endif 1438 return; 1439 } 1440 1441 /** 1442 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1443 * @phba: The phba to associate this trace string with for retrieval. 1444 * @fmt: Format string to be displayed when dumping the log. 1445 * @data1: 1st data parameter to be applied to @fmt. 1446 * @data2: 2nd data parameter to be applied to @fmt. 1447 * @data3: 3rd data parameter to be applied to @fmt. 1448 * 1449 * Description: 1450 * This routine is used by the driver code to add a debugfs log entry to the 1451 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1452 * @data3 are used like printf when displaying the log. 1453 **/ 1454 inline void 1455 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1456 uint16_t data1, uint16_t data2, uint32_t data3) 1457 { 1458 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1459 struct lpfc_debugfs_nvmeio_trc *dtp; 1460 int index; 1461 1462 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1463 return; 1464 1465 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1466 (phba->nvmeio_trc_size - 1); 1467 dtp = phba->nvmeio_trc + index; 1468 dtp->fmt = fmt; 1469 dtp->data1 = data1; 1470 dtp->data2 = data2; 1471 dtp->data3 = data3; 1472 #endif 1473 } 1474 1475 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1476 /** 1477 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1478 * @inode: The inode pointer that contains a vport pointer. 1479 * @file: The file pointer to attach the log output. 1480 * 1481 * Description: 1482 * This routine is the entry point for the debugfs open file operation. It gets 1483 * the vport from the i_private field in @inode, allocates the necessary buffer 1484 * for the log, fills the buffer from the in-memory log for this vport, and then 1485 * returns a pointer to that log in the private_data field in @file. 1486 * 1487 * Returns: 1488 * This function returns zero if successful. On error it will return a negative 1489 * error value. 1490 **/ 1491 static int 1492 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1493 { 1494 struct lpfc_vport *vport = inode->i_private; 1495 struct lpfc_debug *debug; 1496 int size; 1497 int rc = -ENOMEM; 1498 1499 if (!lpfc_debugfs_max_disc_trc) { 1500 rc = -ENOSPC; 1501 goto out; 1502 } 1503 1504 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1505 if (!debug) 1506 goto out; 1507 1508 /* Round to page boundary */ 1509 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1510 size = PAGE_ALIGN(size); 1511 1512 debug->buffer = kmalloc(size, GFP_KERNEL); 1513 if (!debug->buffer) { 1514 kfree(debug); 1515 goto out; 1516 } 1517 1518 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1519 file->private_data = debug; 1520 1521 rc = 0; 1522 out: 1523 return rc; 1524 } 1525 1526 /** 1527 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1528 * @inode: The inode pointer that contains a vport pointer. 1529 * @file: The file pointer to attach the log output. 1530 * 1531 * Description: 1532 * This routine is the entry point for the debugfs open file operation. It gets 1533 * the vport from the i_private field in @inode, allocates the necessary buffer 1534 * for the log, fills the buffer from the in-memory log for this vport, and then 1535 * returns a pointer to that log in the private_data field in @file. 1536 * 1537 * Returns: 1538 * This function returns zero if successful. On error it will return a negative 1539 * error value. 1540 **/ 1541 static int 1542 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1543 { 1544 struct lpfc_hba *phba = inode->i_private; 1545 struct lpfc_debug *debug; 1546 int size; 1547 int rc = -ENOMEM; 1548 1549 if (!lpfc_debugfs_max_slow_ring_trc) { 1550 rc = -ENOSPC; 1551 goto out; 1552 } 1553 1554 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1555 if (!debug) 1556 goto out; 1557 1558 /* Round to page boundary */ 1559 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1560 size = PAGE_ALIGN(size); 1561 1562 debug->buffer = kmalloc(size, GFP_KERNEL); 1563 if (!debug->buffer) { 1564 kfree(debug); 1565 goto out; 1566 } 1567 1568 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 1569 file->private_data = debug; 1570 1571 rc = 0; 1572 out: 1573 return rc; 1574 } 1575 1576 /** 1577 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 1578 * @inode: The inode pointer that contains a vport pointer. 1579 * @file: The file pointer to attach the log output. 1580 * 1581 * Description: 1582 * This routine is the entry point for the debugfs open file operation. It gets 1583 * the vport from the i_private field in @inode, allocates the necessary buffer 1584 * for the log, fills the buffer from the in-memory log for this vport, and then 1585 * returns a pointer to that log in the private_data field in @file. 1586 * 1587 * Returns: 1588 * This function returns zero if successful. On error it will return a negative 1589 * error value. 1590 **/ 1591 static int 1592 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 1593 { 1594 struct lpfc_hba *phba = inode->i_private; 1595 struct lpfc_debug *debug; 1596 int rc = -ENOMEM; 1597 1598 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1599 if (!debug) 1600 goto out; 1601 1602 /* Round to page boundary */ 1603 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 1604 if (!debug->buffer) { 1605 kfree(debug); 1606 goto out; 1607 } 1608 1609 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 1610 LPFC_HBQINFO_SIZE); 1611 file->private_data = debug; 1612 1613 rc = 0; 1614 out: 1615 return rc; 1616 } 1617 1618 /** 1619 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 1620 * @inode: The inode pointer that contains a vport pointer. 1621 * @file: The file pointer to attach the log output. 1622 * 1623 * Description: 1624 * This routine is the entry point for the debugfs open file operation. It gets 1625 * the vport from the i_private field in @inode, allocates the necessary buffer 1626 * for the log, fills the buffer from the in-memory log for this vport, and then 1627 * returns a pointer to that log in the private_data field in @file. 1628 * 1629 * Returns: 1630 * This function returns zero if successful. On error it will return a negative 1631 * error value. 1632 **/ 1633 static int 1634 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 1635 { 1636 struct lpfc_hba *phba = inode->i_private; 1637 struct lpfc_debug *debug; 1638 int rc = -ENOMEM; 1639 1640 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1641 if (!debug) 1642 goto out; 1643 1644 /* Round to page boundary */ 1645 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 1646 if (!debug->buffer) { 1647 kfree(debug); 1648 goto out; 1649 } 1650 1651 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 1652 LPFC_DUMPHBASLIM_SIZE); 1653 file->private_data = debug; 1654 1655 rc = 0; 1656 out: 1657 return rc; 1658 } 1659 1660 /** 1661 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 1662 * @inode: The inode pointer that contains a vport pointer. 1663 * @file: The file pointer to attach the log output. 1664 * 1665 * Description: 1666 * This routine is the entry point for the debugfs open file operation. It gets 1667 * the vport from the i_private field in @inode, allocates the necessary buffer 1668 * for the log, fills the buffer from the in-memory log for this vport, and then 1669 * returns a pointer to that log in the private_data field in @file. 1670 * 1671 * Returns: 1672 * This function returns zero if successful. On error it will return a negative 1673 * error value. 1674 **/ 1675 static int 1676 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 1677 { 1678 struct lpfc_hba *phba = inode->i_private; 1679 struct lpfc_debug *debug; 1680 int rc = -ENOMEM; 1681 1682 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1683 if (!debug) 1684 goto out; 1685 1686 /* Round to page boundary */ 1687 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 1688 if (!debug->buffer) { 1689 kfree(debug); 1690 goto out; 1691 } 1692 1693 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 1694 LPFC_DUMPHOSTSLIM_SIZE); 1695 file->private_data = debug; 1696 1697 rc = 0; 1698 out: 1699 return rc; 1700 } 1701 1702 static int 1703 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) 1704 { 1705 struct lpfc_debug *debug; 1706 int rc = -ENOMEM; 1707 1708 if (!_dump_buf_data) 1709 return -EBUSY; 1710 1711 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1712 if (!debug) 1713 goto out; 1714 1715 /* Round to page boundary */ 1716 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n", 1717 __func__, _dump_buf_data); 1718 debug->buffer = _dump_buf_data; 1719 if (!debug->buffer) { 1720 kfree(debug); 1721 goto out; 1722 } 1723 1724 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; 1725 file->private_data = debug; 1726 1727 rc = 0; 1728 out: 1729 return rc; 1730 } 1731 1732 static int 1733 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) 1734 { 1735 struct lpfc_debug *debug; 1736 int rc = -ENOMEM; 1737 1738 if (!_dump_buf_dif) 1739 return -EBUSY; 1740 1741 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1742 if (!debug) 1743 goto out; 1744 1745 /* Round to page boundary */ 1746 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n", 1747 __func__, _dump_buf_dif, file); 1748 debug->buffer = _dump_buf_dif; 1749 if (!debug->buffer) { 1750 kfree(debug); 1751 goto out; 1752 } 1753 1754 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; 1755 file->private_data = debug; 1756 1757 rc = 0; 1758 out: 1759 return rc; 1760 } 1761 1762 static ssize_t 1763 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, 1764 size_t nbytes, loff_t *ppos) 1765 { 1766 /* 1767 * The Data/DIF buffers only save one failing IO 1768 * The write op is used as a reset mechanism after an IO has 1769 * already been saved to the next one can be saved 1770 */ 1771 spin_lock(&_dump_buf_lock); 1772 1773 memset((void *)_dump_buf_data, 0, 1774 ((1 << PAGE_SHIFT) << _dump_buf_data_order)); 1775 memset((void *)_dump_buf_dif, 0, 1776 ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); 1777 1778 _dump_buf_done = 0; 1779 1780 spin_unlock(&_dump_buf_lock); 1781 1782 return nbytes; 1783 } 1784 1785 static ssize_t 1786 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 1787 size_t nbytes, loff_t *ppos) 1788 { 1789 struct dentry *dent = file->f_path.dentry; 1790 struct lpfc_hba *phba = file->private_data; 1791 char cbuf[32]; 1792 uint64_t tmp = 0; 1793 int cnt = 0; 1794 1795 if (dent == phba->debug_writeGuard) 1796 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 1797 else if (dent == phba->debug_writeApp) 1798 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 1799 else if (dent == phba->debug_writeRef) 1800 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 1801 else if (dent == phba->debug_readGuard) 1802 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 1803 else if (dent == phba->debug_readApp) 1804 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 1805 else if (dent == phba->debug_readRef) 1806 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 1807 else if (dent == phba->debug_InjErrNPortID) 1808 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); 1809 else if (dent == phba->debug_InjErrWWPN) { 1810 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 1811 tmp = cpu_to_be64(tmp); 1812 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); 1813 } else if (dent == phba->debug_InjErrLBA) { 1814 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 1815 cnt = snprintf(cbuf, 32, "off\n"); 1816 else 1817 cnt = snprintf(cbuf, 32, "0x%llx\n", 1818 (uint64_t) phba->lpfc_injerr_lba); 1819 } else 1820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1821 "0547 Unknown debugfs error injection entry\n"); 1822 1823 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 1824 } 1825 1826 static ssize_t 1827 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 1828 size_t nbytes, loff_t *ppos) 1829 { 1830 struct dentry *dent = file->f_path.dentry; 1831 struct lpfc_hba *phba = file->private_data; 1832 char dstbuf[33]; 1833 uint64_t tmp = 0; 1834 int size; 1835 1836 memset(dstbuf, 0, 33); 1837 size = (nbytes < 32) ? nbytes : 32; 1838 if (copy_from_user(dstbuf, buf, size)) 1839 return 0; 1840 1841 if (dent == phba->debug_InjErrLBA) { 1842 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 1843 tmp = (uint64_t)(-1); 1844 } 1845 1846 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 1847 return 0; 1848 1849 if (dent == phba->debug_writeGuard) 1850 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 1851 else if (dent == phba->debug_writeApp) 1852 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 1853 else if (dent == phba->debug_writeRef) 1854 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 1855 else if (dent == phba->debug_readGuard) 1856 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 1857 else if (dent == phba->debug_readApp) 1858 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 1859 else if (dent == phba->debug_readRef) 1860 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 1861 else if (dent == phba->debug_InjErrLBA) 1862 phba->lpfc_injerr_lba = (sector_t)tmp; 1863 else if (dent == phba->debug_InjErrNPortID) 1864 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 1865 else if (dent == phba->debug_InjErrWWPN) { 1866 tmp = cpu_to_be64(tmp); 1867 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 1868 } else 1869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1870 "0548 Unknown debugfs error injection entry\n"); 1871 1872 return nbytes; 1873 } 1874 1875 static int 1876 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 1877 { 1878 return 0; 1879 } 1880 1881 /** 1882 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 1883 * @inode: The inode pointer that contains a vport pointer. 1884 * @file: The file pointer to attach the log output. 1885 * 1886 * Description: 1887 * This routine is the entry point for the debugfs open file operation. It gets 1888 * the vport from the i_private field in @inode, allocates the necessary buffer 1889 * for the log, fills the buffer from the in-memory log for this vport, and then 1890 * returns a pointer to that log in the private_data field in @file. 1891 * 1892 * Returns: 1893 * This function returns zero if successful. On error it will return a negative 1894 * error value. 1895 **/ 1896 static int 1897 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 1898 { 1899 struct lpfc_vport *vport = inode->i_private; 1900 struct lpfc_debug *debug; 1901 int rc = -ENOMEM; 1902 1903 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1904 if (!debug) 1905 goto out; 1906 1907 /* Round to page boundary */ 1908 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 1909 if (!debug->buffer) { 1910 kfree(debug); 1911 goto out; 1912 } 1913 1914 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 1915 LPFC_NODELIST_SIZE); 1916 file->private_data = debug; 1917 1918 rc = 0; 1919 out: 1920 return rc; 1921 } 1922 1923 /** 1924 * lpfc_debugfs_lseek - Seek through a debugfs file 1925 * @file: The file pointer to seek through. 1926 * @off: The offset to seek to or the amount to seek by. 1927 * @whence: Indicates how to seek. 1928 * 1929 * Description: 1930 * This routine is the entry point for the debugfs lseek file operation. The 1931 * @whence parameter indicates whether @off is the offset to directly seek to, 1932 * or if it is a value to seek forward or reverse by. This function figures out 1933 * what the new offset of the debugfs file will be and assigns that value to the 1934 * f_pos field of @file. 1935 * 1936 * Returns: 1937 * This function returns the new offset if successful and returns a negative 1938 * error if unable to process the seek. 1939 **/ 1940 static loff_t 1941 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 1942 { 1943 struct lpfc_debug *debug = file->private_data; 1944 return fixed_size_llseek(file, off, whence, debug->len); 1945 } 1946 1947 /** 1948 * lpfc_debugfs_read - Read a debugfs file 1949 * @file: The file pointer to read from. 1950 * @buf: The buffer to copy the data to. 1951 * @nbytes: The number of bytes to read. 1952 * @ppos: The position in the file to start reading from. 1953 * 1954 * Description: 1955 * This routine reads data from from the buffer indicated in the private_data 1956 * field of @file. It will start reading at @ppos and copy up to @nbytes of 1957 * data to @buf. 1958 * 1959 * Returns: 1960 * This function returns the amount of data that was read (this could be less 1961 * than @nbytes if the end of the file was reached) or a negative error value. 1962 **/ 1963 static ssize_t 1964 lpfc_debugfs_read(struct file *file, char __user *buf, 1965 size_t nbytes, loff_t *ppos) 1966 { 1967 struct lpfc_debug *debug = file->private_data; 1968 1969 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 1970 debug->len); 1971 } 1972 1973 /** 1974 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 1975 * @inode: The inode pointer that contains a vport pointer. (unused) 1976 * @file: The file pointer that contains the buffer to release. 1977 * 1978 * Description: 1979 * This routine frees the buffer that was allocated when the debugfs file was 1980 * opened. 1981 * 1982 * Returns: 1983 * This function returns zero. 1984 **/ 1985 static int 1986 lpfc_debugfs_release(struct inode *inode, struct file *file) 1987 { 1988 struct lpfc_debug *debug = file->private_data; 1989 1990 kfree(debug->buffer); 1991 kfree(debug); 1992 1993 return 0; 1994 } 1995 1996 static int 1997 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) 1998 { 1999 struct lpfc_debug *debug = file->private_data; 2000 2001 debug->buffer = NULL; 2002 kfree(debug); 2003 2004 return 0; 2005 } 2006 2007 2008 static int 2009 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2010 { 2011 struct lpfc_vport *vport = inode->i_private; 2012 struct lpfc_debug *debug; 2013 int rc = -ENOMEM; 2014 2015 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2016 if (!debug) 2017 goto out; 2018 2019 /* Round to page boundary */ 2020 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2021 if (!debug->buffer) { 2022 kfree(debug); 2023 goto out; 2024 } 2025 2026 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2027 LPFC_NVMESTAT_SIZE); 2028 2029 debug->i_private = inode->i_private; 2030 file->private_data = debug; 2031 2032 rc = 0; 2033 out: 2034 return rc; 2035 } 2036 2037 static ssize_t 2038 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2039 size_t nbytes, loff_t *ppos) 2040 { 2041 struct lpfc_debug *debug = file->private_data; 2042 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2043 struct lpfc_hba *phba = vport->phba; 2044 struct lpfc_nvmet_tgtport *tgtp; 2045 char mybuf[64]; 2046 char *pbuf; 2047 2048 if (!phba->targetport) 2049 return -ENXIO; 2050 2051 if (nbytes > 64) 2052 nbytes = 64; 2053 2054 memset(mybuf, 0, sizeof(mybuf)); 2055 2056 if (copy_from_user(mybuf, buf, nbytes)) 2057 return -EFAULT; 2058 pbuf = &mybuf[0]; 2059 2060 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2061 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2062 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2063 atomic_set(&tgtp->rcv_ls_req_in, 0); 2064 atomic_set(&tgtp->rcv_ls_req_out, 0); 2065 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2066 atomic_set(&tgtp->xmt_ls_abort, 0); 2067 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2068 atomic_set(&tgtp->xmt_ls_rsp, 0); 2069 atomic_set(&tgtp->xmt_ls_drop, 0); 2070 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2071 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2072 2073 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2074 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2075 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2076 atomic_set(&tgtp->xmt_fcp_drop, 0); 2077 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2078 atomic_set(&tgtp->xmt_fcp_read, 0); 2079 atomic_set(&tgtp->xmt_fcp_write, 0); 2080 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2081 atomic_set(&tgtp->xmt_fcp_release, 0); 2082 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2083 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2084 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2085 2086 atomic_set(&tgtp->xmt_fcp_abort, 0); 2087 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2088 atomic_set(&tgtp->xmt_abort_sol, 0); 2089 atomic_set(&tgtp->xmt_abort_unsol, 0); 2090 atomic_set(&tgtp->xmt_abort_rsp, 0); 2091 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2092 } 2093 return nbytes; 2094 } 2095 2096 static int 2097 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file) 2098 { 2099 struct lpfc_vport *vport = inode->i_private; 2100 struct lpfc_debug *debug; 2101 int rc = -ENOMEM; 2102 2103 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2104 if (!debug) 2105 goto out; 2106 2107 /* Round to page boundary */ 2108 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL); 2109 if (!debug->buffer) { 2110 kfree(debug); 2111 goto out; 2112 } 2113 2114 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer, 2115 LPFC_NVMEKTIME_SIZE); 2116 2117 debug->i_private = inode->i_private; 2118 file->private_data = debug; 2119 2120 rc = 0; 2121 out: 2122 return rc; 2123 } 2124 2125 static ssize_t 2126 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf, 2127 size_t nbytes, loff_t *ppos) 2128 { 2129 struct lpfc_debug *debug = file->private_data; 2130 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2131 struct lpfc_hba *phba = vport->phba; 2132 char mybuf[64]; 2133 char *pbuf; 2134 2135 if (nbytes > 64) 2136 nbytes = 64; 2137 2138 memset(mybuf, 0, sizeof(mybuf)); 2139 2140 if (copy_from_user(mybuf, buf, nbytes)) 2141 return -EFAULT; 2142 pbuf = &mybuf[0]; 2143 2144 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2145 phba->ktime_data_samples = 0; 2146 phba->ktime_status_samples = 0; 2147 phba->ktime_seg1_total = 0; 2148 phba->ktime_seg1_max = 0; 2149 phba->ktime_seg1_min = 0xffffffff; 2150 phba->ktime_seg2_total = 0; 2151 phba->ktime_seg2_max = 0; 2152 phba->ktime_seg2_min = 0xffffffff; 2153 phba->ktime_seg3_total = 0; 2154 phba->ktime_seg3_max = 0; 2155 phba->ktime_seg3_min = 0xffffffff; 2156 phba->ktime_seg4_total = 0; 2157 phba->ktime_seg4_max = 0; 2158 phba->ktime_seg4_min = 0xffffffff; 2159 phba->ktime_seg5_total = 0; 2160 phba->ktime_seg5_max = 0; 2161 phba->ktime_seg5_min = 0xffffffff; 2162 phba->ktime_seg6_total = 0; 2163 phba->ktime_seg6_max = 0; 2164 phba->ktime_seg6_min = 0xffffffff; 2165 phba->ktime_seg7_total = 0; 2166 phba->ktime_seg7_max = 0; 2167 phba->ktime_seg7_min = 0xffffffff; 2168 phba->ktime_seg8_total = 0; 2169 phba->ktime_seg8_max = 0; 2170 phba->ktime_seg8_min = 0xffffffff; 2171 phba->ktime_seg9_total = 0; 2172 phba->ktime_seg9_max = 0; 2173 phba->ktime_seg9_min = 0xffffffff; 2174 phba->ktime_seg10_total = 0; 2175 phba->ktime_seg10_max = 0; 2176 phba->ktime_seg10_min = 0xffffffff; 2177 2178 phba->ktime_on = 1; 2179 return strlen(pbuf); 2180 } else if ((strncmp(pbuf, "off", 2181 sizeof("off") - 1) == 0)) { 2182 phba->ktime_on = 0; 2183 return strlen(pbuf); 2184 } else if ((strncmp(pbuf, "zero", 2185 sizeof("zero") - 1) == 0)) { 2186 phba->ktime_data_samples = 0; 2187 phba->ktime_status_samples = 0; 2188 phba->ktime_seg1_total = 0; 2189 phba->ktime_seg1_max = 0; 2190 phba->ktime_seg1_min = 0xffffffff; 2191 phba->ktime_seg2_total = 0; 2192 phba->ktime_seg2_max = 0; 2193 phba->ktime_seg2_min = 0xffffffff; 2194 phba->ktime_seg3_total = 0; 2195 phba->ktime_seg3_max = 0; 2196 phba->ktime_seg3_min = 0xffffffff; 2197 phba->ktime_seg4_total = 0; 2198 phba->ktime_seg4_max = 0; 2199 phba->ktime_seg4_min = 0xffffffff; 2200 phba->ktime_seg5_total = 0; 2201 phba->ktime_seg5_max = 0; 2202 phba->ktime_seg5_min = 0xffffffff; 2203 phba->ktime_seg6_total = 0; 2204 phba->ktime_seg6_max = 0; 2205 phba->ktime_seg6_min = 0xffffffff; 2206 phba->ktime_seg7_total = 0; 2207 phba->ktime_seg7_max = 0; 2208 phba->ktime_seg7_min = 0xffffffff; 2209 phba->ktime_seg8_total = 0; 2210 phba->ktime_seg8_max = 0; 2211 phba->ktime_seg8_min = 0xffffffff; 2212 phba->ktime_seg9_total = 0; 2213 phba->ktime_seg9_max = 0; 2214 phba->ktime_seg9_min = 0xffffffff; 2215 phba->ktime_seg10_total = 0; 2216 phba->ktime_seg10_max = 0; 2217 phba->ktime_seg10_min = 0xffffffff; 2218 return strlen(pbuf); 2219 } 2220 return -EINVAL; 2221 } 2222 2223 static int 2224 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2225 { 2226 struct lpfc_hba *phba = inode->i_private; 2227 struct lpfc_debug *debug; 2228 int rc = -ENOMEM; 2229 2230 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2231 if (!debug) 2232 goto out; 2233 2234 /* Round to page boundary */ 2235 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2236 if (!debug->buffer) { 2237 kfree(debug); 2238 goto out; 2239 } 2240 2241 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2242 LPFC_NVMEIO_TRC_SIZE); 2243 2244 debug->i_private = inode->i_private; 2245 file->private_data = debug; 2246 2247 rc = 0; 2248 out: 2249 return rc; 2250 } 2251 2252 static ssize_t 2253 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2254 size_t nbytes, loff_t *ppos) 2255 { 2256 struct lpfc_debug *debug = file->private_data; 2257 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2258 int i; 2259 unsigned long sz; 2260 char mybuf[64]; 2261 char *pbuf; 2262 2263 if (nbytes > 64) 2264 nbytes = 64; 2265 2266 memset(mybuf, 0, sizeof(mybuf)); 2267 2268 if (copy_from_user(mybuf, buf, nbytes)) 2269 return -EFAULT; 2270 pbuf = &mybuf[0]; 2271 2272 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2274 "0570 nvmeio_trc_off\n"); 2275 phba->nvmeio_trc_output_idx = 0; 2276 phba->nvmeio_trc_on = 0; 2277 return strlen(pbuf); 2278 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2280 "0571 nvmeio_trc_on\n"); 2281 phba->nvmeio_trc_output_idx = 0; 2282 phba->nvmeio_trc_on = 1; 2283 return strlen(pbuf); 2284 } 2285 2286 /* We must be off to allocate the trace buffer */ 2287 if (phba->nvmeio_trc_on != 0) 2288 return -EINVAL; 2289 2290 /* If not on or off, the parameter is the trace buffer size */ 2291 i = kstrtoul(pbuf, 0, &sz); 2292 if (i) 2293 return -EINVAL; 2294 phba->nvmeio_trc_size = (uint32_t)sz; 2295 2296 /* It must be a power of 2 - round down */ 2297 i = 0; 2298 while (sz > 1) { 2299 sz = sz >> 1; 2300 i++; 2301 } 2302 sz = (1 << i); 2303 if (phba->nvmeio_trc_size != sz) 2304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2305 "0572 nvmeio_trc_size changed to %ld\n", 2306 sz); 2307 phba->nvmeio_trc_size = (uint32_t)sz; 2308 2309 /* If one previously exists, free it */ 2310 kfree(phba->nvmeio_trc); 2311 2312 /* Allocate new trace buffer and initialize */ 2313 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 2314 sz), GFP_KERNEL); 2315 if (!phba->nvmeio_trc) { 2316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2317 "0573 Cannot create debugfs " 2318 "nvmeio_trc buffer\n"); 2319 return -ENOMEM; 2320 } 2321 atomic_set(&phba->nvmeio_trc_cnt, 0); 2322 phba->nvmeio_trc_on = 0; 2323 phba->nvmeio_trc_output_idx = 0; 2324 2325 return strlen(pbuf); 2326 } 2327 2328 static int 2329 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file) 2330 { 2331 struct lpfc_vport *vport = inode->i_private; 2332 struct lpfc_debug *debug; 2333 int rc = -ENOMEM; 2334 2335 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2336 if (!debug) 2337 goto out; 2338 2339 /* Round to page boundary */ 2340 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL); 2341 if (!debug->buffer) { 2342 kfree(debug); 2343 goto out; 2344 } 2345 2346 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer, 2347 LPFC_NVMEKTIME_SIZE); 2348 2349 debug->i_private = inode->i_private; 2350 file->private_data = debug; 2351 2352 rc = 0; 2353 out: 2354 return rc; 2355 } 2356 2357 static ssize_t 2358 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf, 2359 size_t nbytes, loff_t *ppos) 2360 { 2361 struct lpfc_debug *debug = file->private_data; 2362 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2363 struct lpfc_hba *phba = vport->phba; 2364 char mybuf[64]; 2365 char *pbuf; 2366 int i; 2367 2368 if (nbytes > 64) 2369 nbytes = 64; 2370 2371 memset(mybuf, 0, sizeof(mybuf)); 2372 2373 if (copy_from_user(mybuf, buf, nbytes)) 2374 return -EFAULT; 2375 pbuf = &mybuf[0]; 2376 2377 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2378 if (phba->nvmet_support) 2379 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO; 2380 else 2381 phba->cpucheck_on |= LPFC_CHECK_NVME_IO; 2382 return strlen(pbuf); 2383 } else if ((strncmp(pbuf, "rcv", 2384 sizeof("rcv") - 1) == 0)) { 2385 if (phba->nvmet_support) 2386 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV; 2387 else 2388 return -EINVAL; 2389 return strlen(pbuf); 2390 } else if ((strncmp(pbuf, "off", 2391 sizeof("off") - 1) == 0)) { 2392 phba->cpucheck_on = LPFC_CHECK_OFF; 2393 return strlen(pbuf); 2394 } else if ((strncmp(pbuf, "zero", 2395 sizeof("zero") - 1) == 0)) { 2396 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 2397 if (i >= LPFC_CHECK_CPU_CNT) 2398 break; 2399 phba->cpucheck_rcv_io[i] = 0; 2400 phba->cpucheck_xmt_io[i] = 0; 2401 phba->cpucheck_cmpl_io[i] = 0; 2402 phba->cpucheck_ccmpl_io[i] = 0; 2403 } 2404 return strlen(pbuf); 2405 } 2406 return -EINVAL; 2407 } 2408 2409 /* 2410 * --------------------------------- 2411 * iDiag debugfs file access methods 2412 * --------------------------------- 2413 * 2414 * All access methods are through the proper SLI4 PCI function's debugfs 2415 * iDiag directory: 2416 * 2417 * /sys/kernel/debug/lpfc/fn<#>/iDiag 2418 */ 2419 2420 /** 2421 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 2422 * @buf: The pointer to the user space buffer. 2423 * @nbytes: The number of bytes in the user space buffer. 2424 * @idiag_cmd: pointer to the idiag command struct. 2425 * 2426 * This routine reads data from debugfs user space buffer and parses the 2427 * buffer for getting the idiag command and arguments. The while space in 2428 * between the set of data is used as the parsing separator. 2429 * 2430 * This routine returns 0 when successful, it returns proper error code 2431 * back to the user space in error conditions. 2432 */ 2433 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 2434 struct lpfc_idiag_cmd *idiag_cmd) 2435 { 2436 char mybuf[64]; 2437 char *pbuf, *step_str; 2438 int i; 2439 size_t bsize; 2440 2441 memset(mybuf, 0, sizeof(mybuf)); 2442 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 2443 bsize = min(nbytes, (sizeof(mybuf)-1)); 2444 2445 if (copy_from_user(mybuf, buf, bsize)) 2446 return -EFAULT; 2447 pbuf = &mybuf[0]; 2448 step_str = strsep(&pbuf, "\t "); 2449 2450 /* The opcode must present */ 2451 if (!step_str) 2452 return -EINVAL; 2453 2454 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 2455 if (idiag_cmd->opcode == 0) 2456 return -EINVAL; 2457 2458 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 2459 step_str = strsep(&pbuf, "\t "); 2460 if (!step_str) 2461 return i; 2462 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 2463 } 2464 return i; 2465 } 2466 2467 /** 2468 * lpfc_idiag_open - idiag open debugfs 2469 * @inode: The inode pointer that contains a pointer to phba. 2470 * @file: The file pointer to attach the file operation. 2471 * 2472 * Description: 2473 * This routine is the entry point for the debugfs open file operation. It 2474 * gets the reference to phba from the i_private field in @inode, it then 2475 * allocates buffer for the file operation, performs the necessary PCI config 2476 * space read into the allocated buffer according to the idiag user command 2477 * setup, and then returns a pointer to buffer in the private_data field in 2478 * @file. 2479 * 2480 * Returns: 2481 * This function returns zero if successful. On error it will return an 2482 * negative error value. 2483 **/ 2484 static int 2485 lpfc_idiag_open(struct inode *inode, struct file *file) 2486 { 2487 struct lpfc_debug *debug; 2488 2489 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2490 if (!debug) 2491 return -ENOMEM; 2492 2493 debug->i_private = inode->i_private; 2494 debug->buffer = NULL; 2495 file->private_data = debug; 2496 2497 return 0; 2498 } 2499 2500 /** 2501 * lpfc_idiag_release - Release idiag access file operation 2502 * @inode: The inode pointer that contains a vport pointer. (unused) 2503 * @file: The file pointer that contains the buffer to release. 2504 * 2505 * Description: 2506 * This routine is the generic release routine for the idiag access file 2507 * operation, it frees the buffer that was allocated when the debugfs file 2508 * was opened. 2509 * 2510 * Returns: 2511 * This function returns zero. 2512 **/ 2513 static int 2514 lpfc_idiag_release(struct inode *inode, struct file *file) 2515 { 2516 struct lpfc_debug *debug = file->private_data; 2517 2518 /* Free the buffers to the file operation */ 2519 kfree(debug->buffer); 2520 kfree(debug); 2521 2522 return 0; 2523 } 2524 2525 /** 2526 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 2527 * @inode: The inode pointer that contains a vport pointer. (unused) 2528 * @file: The file pointer that contains the buffer to release. 2529 * 2530 * Description: 2531 * This routine frees the buffer that was allocated when the debugfs file 2532 * was opened. It also reset the fields in the idiag command struct in the 2533 * case of command for write operation. 2534 * 2535 * Returns: 2536 * This function returns zero. 2537 **/ 2538 static int 2539 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 2540 { 2541 struct lpfc_debug *debug = file->private_data; 2542 2543 if (debug->op == LPFC_IDIAG_OP_WR) { 2544 switch (idiag.cmd.opcode) { 2545 case LPFC_IDIAG_CMD_PCICFG_WR: 2546 case LPFC_IDIAG_CMD_PCICFG_ST: 2547 case LPFC_IDIAG_CMD_PCICFG_CL: 2548 case LPFC_IDIAG_CMD_QUEACC_WR: 2549 case LPFC_IDIAG_CMD_QUEACC_ST: 2550 case LPFC_IDIAG_CMD_QUEACC_CL: 2551 memset(&idiag, 0, sizeof(idiag)); 2552 break; 2553 default: 2554 break; 2555 } 2556 } 2557 2558 /* Free the buffers to the file operation */ 2559 kfree(debug->buffer); 2560 kfree(debug); 2561 2562 return 0; 2563 } 2564 2565 /** 2566 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 2567 * @file: The file pointer to read from. 2568 * @buf: The buffer to copy the data to. 2569 * @nbytes: The number of bytes to read. 2570 * @ppos: The position in the file to start reading from. 2571 * 2572 * Description: 2573 * This routine reads data from the @phba pci config space according to the 2574 * idiag command, and copies to user @buf. Depending on the PCI config space 2575 * read command setup, it does either a single register read of a byte 2576 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 2577 * registers from the 4K extended PCI config space. 2578 * 2579 * Returns: 2580 * This function returns the amount of data that was read (this could be less 2581 * than @nbytes if the end of the file was reached) or a negative error value. 2582 **/ 2583 static ssize_t 2584 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 2585 loff_t *ppos) 2586 { 2587 struct lpfc_debug *debug = file->private_data; 2588 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2589 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 2590 int where, count; 2591 char *pbuffer; 2592 struct pci_dev *pdev; 2593 uint32_t u32val; 2594 uint16_t u16val; 2595 uint8_t u8val; 2596 2597 pdev = phba->pcidev; 2598 if (!pdev) 2599 return 0; 2600 2601 /* This is a user read operation */ 2602 debug->op = LPFC_IDIAG_OP_RD; 2603 2604 if (!debug->buffer) 2605 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 2606 if (!debug->buffer) 2607 return 0; 2608 pbuffer = debug->buffer; 2609 2610 if (*ppos) 2611 return 0; 2612 2613 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2614 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2615 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2616 } else 2617 return 0; 2618 2619 /* Read single PCI config space register */ 2620 switch (count) { 2621 case SIZE_U8: /* byte (8 bits) */ 2622 pci_read_config_byte(pdev, where, &u8val); 2623 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2624 "%03x: %02x\n", where, u8val); 2625 break; 2626 case SIZE_U16: /* word (16 bits) */ 2627 pci_read_config_word(pdev, where, &u16val); 2628 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2629 "%03x: %04x\n", where, u16val); 2630 break; 2631 case SIZE_U32: /* double word (32 bits) */ 2632 pci_read_config_dword(pdev, where, &u32val); 2633 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2634 "%03x: %08x\n", where, u32val); 2635 break; 2636 case LPFC_PCI_CFG_BROWSE: /* browse all */ 2637 goto pcicfg_browse; 2638 break; 2639 default: 2640 /* illegal count */ 2641 len = 0; 2642 break; 2643 } 2644 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2645 2646 pcicfg_browse: 2647 2648 /* Browse all PCI config space registers */ 2649 offset_label = idiag.offset.last_rd; 2650 offset = offset_label; 2651 2652 /* Read PCI config space */ 2653 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2654 "%03x: ", offset_label); 2655 while (index > 0) { 2656 pci_read_config_dword(pdev, offset, &u32val); 2657 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2658 "%08x ", u32val); 2659 offset += sizeof(uint32_t); 2660 if (offset >= LPFC_PCI_CFG_SIZE) { 2661 len += snprintf(pbuffer+len, 2662 LPFC_PCI_CFG_SIZE-len, "\n"); 2663 break; 2664 } 2665 index -= sizeof(uint32_t); 2666 if (!index) 2667 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2668 "\n"); 2669 else if (!(index % (8 * sizeof(uint32_t)))) { 2670 offset_label += (8 * sizeof(uint32_t)); 2671 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 2672 "\n%03x: ", offset_label); 2673 } 2674 } 2675 2676 /* Set up the offset for next portion of pci cfg read */ 2677 if (index == 0) { 2678 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 2679 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 2680 idiag.offset.last_rd = 0; 2681 } else 2682 idiag.offset.last_rd = 0; 2683 2684 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2685 } 2686 2687 /** 2688 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 2689 * @file: The file pointer to read from. 2690 * @buf: The buffer to copy the user data from. 2691 * @nbytes: The number of bytes to get. 2692 * @ppos: The position in the file to start reading from. 2693 * 2694 * This routine get the debugfs idiag command struct from user space and 2695 * then perform the syntax check for PCI config space read or write command 2696 * accordingly. In the case of PCI config space read command, it sets up 2697 * the command in the idiag command struct for the debugfs read operation. 2698 * In the case of PCI config space write operation, it executes the write 2699 * operation into the PCI config space accordingly. 2700 * 2701 * It returns the @nbytges passing in from debugfs user space when successful. 2702 * In case of error conditions, it returns proper error code back to the user 2703 * space. 2704 */ 2705 static ssize_t 2706 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 2707 size_t nbytes, loff_t *ppos) 2708 { 2709 struct lpfc_debug *debug = file->private_data; 2710 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2711 uint32_t where, value, count; 2712 uint32_t u32val; 2713 uint16_t u16val; 2714 uint8_t u8val; 2715 struct pci_dev *pdev; 2716 int rc; 2717 2718 pdev = phba->pcidev; 2719 if (!pdev) 2720 return -EFAULT; 2721 2722 /* This is a user write operation */ 2723 debug->op = LPFC_IDIAG_OP_WR; 2724 2725 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 2726 if (rc < 0) 2727 return rc; 2728 2729 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 2730 /* Sanity check on PCI config read command line arguments */ 2731 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 2732 goto error_out; 2733 /* Read command from PCI config space, set up command fields */ 2734 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2735 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2736 if (count == LPFC_PCI_CFG_BROWSE) { 2737 if (where % sizeof(uint32_t)) 2738 goto error_out; 2739 /* Starting offset to browse */ 2740 idiag.offset.last_rd = where; 2741 } else if ((count != sizeof(uint8_t)) && 2742 (count != sizeof(uint16_t)) && 2743 (count != sizeof(uint32_t))) 2744 goto error_out; 2745 if (count == sizeof(uint8_t)) { 2746 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2747 goto error_out; 2748 if (where % sizeof(uint8_t)) 2749 goto error_out; 2750 } 2751 if (count == sizeof(uint16_t)) { 2752 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2753 goto error_out; 2754 if (where % sizeof(uint16_t)) 2755 goto error_out; 2756 } 2757 if (count == sizeof(uint32_t)) { 2758 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2759 goto error_out; 2760 if (where % sizeof(uint32_t)) 2761 goto error_out; 2762 } 2763 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 2764 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 2765 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2766 /* Sanity check on PCI config write command line arguments */ 2767 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 2768 goto error_out; 2769 /* Write command to PCI config space, read-modify-write */ 2770 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 2771 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 2772 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 2773 /* Sanity checks */ 2774 if ((count != sizeof(uint8_t)) && 2775 (count != sizeof(uint16_t)) && 2776 (count != sizeof(uint32_t))) 2777 goto error_out; 2778 if (count == sizeof(uint8_t)) { 2779 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 2780 goto error_out; 2781 if (where % sizeof(uint8_t)) 2782 goto error_out; 2783 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2784 pci_write_config_byte(pdev, where, 2785 (uint8_t)value); 2786 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2787 rc = pci_read_config_byte(pdev, where, &u8val); 2788 if (!rc) { 2789 u8val |= (uint8_t)value; 2790 pci_write_config_byte(pdev, where, 2791 u8val); 2792 } 2793 } 2794 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2795 rc = pci_read_config_byte(pdev, where, &u8val); 2796 if (!rc) { 2797 u8val &= (uint8_t)(~value); 2798 pci_write_config_byte(pdev, where, 2799 u8val); 2800 } 2801 } 2802 } 2803 if (count == sizeof(uint16_t)) { 2804 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 2805 goto error_out; 2806 if (where % sizeof(uint16_t)) 2807 goto error_out; 2808 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2809 pci_write_config_word(pdev, where, 2810 (uint16_t)value); 2811 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2812 rc = pci_read_config_word(pdev, where, &u16val); 2813 if (!rc) { 2814 u16val |= (uint16_t)value; 2815 pci_write_config_word(pdev, where, 2816 u16val); 2817 } 2818 } 2819 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2820 rc = pci_read_config_word(pdev, where, &u16val); 2821 if (!rc) { 2822 u16val &= (uint16_t)(~value); 2823 pci_write_config_word(pdev, where, 2824 u16val); 2825 } 2826 } 2827 } 2828 if (count == sizeof(uint32_t)) { 2829 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 2830 goto error_out; 2831 if (where % sizeof(uint32_t)) 2832 goto error_out; 2833 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 2834 pci_write_config_dword(pdev, where, value); 2835 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 2836 rc = pci_read_config_dword(pdev, where, 2837 &u32val); 2838 if (!rc) { 2839 u32val |= value; 2840 pci_write_config_dword(pdev, where, 2841 u32val); 2842 } 2843 } 2844 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 2845 rc = pci_read_config_dword(pdev, where, 2846 &u32val); 2847 if (!rc) { 2848 u32val &= ~value; 2849 pci_write_config_dword(pdev, where, 2850 u32val); 2851 } 2852 } 2853 } 2854 } else 2855 /* All other opecodes are illegal for now */ 2856 goto error_out; 2857 2858 return nbytes; 2859 error_out: 2860 memset(&idiag, 0, sizeof(idiag)); 2861 return -EINVAL; 2862 } 2863 2864 /** 2865 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 2866 * @file: The file pointer to read from. 2867 * @buf: The buffer to copy the data to. 2868 * @nbytes: The number of bytes to read. 2869 * @ppos: The position in the file to start reading from. 2870 * 2871 * Description: 2872 * This routine reads data from the @phba pci bar memory mapped space 2873 * according to the idiag command, and copies to user @buf. 2874 * 2875 * Returns: 2876 * This function returns the amount of data that was read (this could be less 2877 * than @nbytes if the end of the file was reached) or a negative error value. 2878 **/ 2879 static ssize_t 2880 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 2881 loff_t *ppos) 2882 { 2883 struct lpfc_debug *debug = file->private_data; 2884 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2885 int offset_label, offset, offset_run, len = 0, index; 2886 int bar_num, acc_range, bar_size; 2887 char *pbuffer; 2888 void __iomem *mem_mapped_bar; 2889 uint32_t if_type; 2890 struct pci_dev *pdev; 2891 uint32_t u32val; 2892 2893 pdev = phba->pcidev; 2894 if (!pdev) 2895 return 0; 2896 2897 /* This is a user read operation */ 2898 debug->op = LPFC_IDIAG_OP_RD; 2899 2900 if (!debug->buffer) 2901 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 2902 if (!debug->buffer) 2903 return 0; 2904 pbuffer = debug->buffer; 2905 2906 if (*ppos) 2907 return 0; 2908 2909 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 2910 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 2911 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 2912 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 2913 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 2914 } else 2915 return 0; 2916 2917 if (acc_range == 0) 2918 return 0; 2919 2920 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2921 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 2922 if (bar_num == IDIAG_BARACC_BAR_0) 2923 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2924 else if (bar_num == IDIAG_BARACC_BAR_1) 2925 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 2926 else if (bar_num == IDIAG_BARACC_BAR_2) 2927 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 2928 else 2929 return 0; 2930 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 2931 if (bar_num == IDIAG_BARACC_BAR_0) 2932 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 2933 else 2934 return 0; 2935 } else 2936 return 0; 2937 2938 /* Read single PCI bar space register */ 2939 if (acc_range == SINGLE_WORD) { 2940 offset_run = offset; 2941 u32val = readl(mem_mapped_bar + offset_run); 2942 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2943 "%05x: %08x\n", offset_run, u32val); 2944 } else 2945 goto baracc_browse; 2946 2947 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 2948 2949 baracc_browse: 2950 2951 /* Browse all PCI bar space registers */ 2952 offset_label = idiag.offset.last_rd; 2953 offset_run = offset_label; 2954 2955 /* Read PCI bar memory mapped space */ 2956 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2957 "%05x: ", offset_label); 2958 index = LPFC_PCI_BAR_RD_SIZE; 2959 while (index > 0) { 2960 u32val = readl(mem_mapped_bar + offset_run); 2961 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 2962 "%08x ", u32val); 2963 offset_run += sizeof(uint32_t); 2964 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2965 if (offset_run >= bar_size) { 2966 len += snprintf(pbuffer+len, 2967 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2968 break; 2969 } 2970 } else { 2971 if (offset_run >= offset + 2972 (acc_range * sizeof(uint32_t))) { 2973 len += snprintf(pbuffer+len, 2974 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2975 break; 2976 } 2977 } 2978 index -= sizeof(uint32_t); 2979 if (!index) 2980 len += snprintf(pbuffer+len, 2981 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 2982 else if (!(index % (8 * sizeof(uint32_t)))) { 2983 offset_label += (8 * sizeof(uint32_t)); 2984 len += snprintf(pbuffer+len, 2985 LPFC_PCI_BAR_RD_BUF_SIZE-len, 2986 "\n%05x: ", offset_label); 2987 } 2988 } 2989 2990 /* Set up the offset for next portion of pci bar read */ 2991 if (index == 0) { 2992 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 2993 if (acc_range == LPFC_PCI_BAR_BROWSE) { 2994 if (idiag.offset.last_rd >= bar_size) 2995 idiag.offset.last_rd = 0; 2996 } else { 2997 if (offset_run >= offset + 2998 (acc_range * sizeof(uint32_t))) 2999 idiag.offset.last_rd = offset; 3000 } 3001 } else { 3002 if (acc_range == LPFC_PCI_BAR_BROWSE) 3003 idiag.offset.last_rd = 0; 3004 else 3005 idiag.offset.last_rd = offset; 3006 } 3007 3008 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3009 } 3010 3011 /** 3012 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3013 * @file: The file pointer to read from. 3014 * @buf: The buffer to copy the user data from. 3015 * @nbytes: The number of bytes to get. 3016 * @ppos: The position in the file to start reading from. 3017 * 3018 * This routine get the debugfs idiag command struct from user space and 3019 * then perform the syntax check for PCI bar memory mapped space read or 3020 * write command accordingly. In the case of PCI bar memory mapped space 3021 * read command, it sets up the command in the idiag command struct for 3022 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3023 * write operation, it executes the write operation into the PCI bar memory 3024 * mapped space accordingly. 3025 * 3026 * It returns the @nbytges passing in from debugfs user space when successful. 3027 * In case of error conditions, it returns proper error code back to the user 3028 * space. 3029 */ 3030 static ssize_t 3031 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3032 size_t nbytes, loff_t *ppos) 3033 { 3034 struct lpfc_debug *debug = file->private_data; 3035 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3036 uint32_t bar_num, bar_size, offset, value, acc_range; 3037 struct pci_dev *pdev; 3038 void __iomem *mem_mapped_bar; 3039 uint32_t if_type; 3040 uint32_t u32val; 3041 int rc; 3042 3043 pdev = phba->pcidev; 3044 if (!pdev) 3045 return -EFAULT; 3046 3047 /* This is a user write operation */ 3048 debug->op = LPFC_IDIAG_OP_WR; 3049 3050 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3051 if (rc < 0) 3052 return rc; 3053 3054 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3055 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3056 3057 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3058 if ((bar_num != IDIAG_BARACC_BAR_0) && 3059 (bar_num != IDIAG_BARACC_BAR_1) && 3060 (bar_num != IDIAG_BARACC_BAR_2)) 3061 goto error_out; 3062 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3063 if (bar_num != IDIAG_BARACC_BAR_0) 3064 goto error_out; 3065 } else 3066 goto error_out; 3067 3068 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3069 if (bar_num == IDIAG_BARACC_BAR_0) { 3070 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3071 LPFC_PCI_IF0_BAR0_SIZE; 3072 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3073 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3074 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3075 LPFC_PCI_IF0_BAR1_SIZE; 3076 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3077 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3078 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3079 LPFC_PCI_IF0_BAR2_SIZE; 3080 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3081 } else 3082 goto error_out; 3083 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3084 if (bar_num == IDIAG_BARACC_BAR_0) { 3085 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3086 LPFC_PCI_IF2_BAR0_SIZE; 3087 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3088 } else 3089 goto error_out; 3090 } else 3091 goto error_out; 3092 3093 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3094 if (offset % sizeof(uint32_t)) 3095 goto error_out; 3096 3097 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3098 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3099 /* Sanity check on PCI config read command line arguments */ 3100 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3101 goto error_out; 3102 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3103 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3104 if (offset > bar_size - sizeof(uint32_t)) 3105 goto error_out; 3106 /* Starting offset to browse */ 3107 idiag.offset.last_rd = offset; 3108 } else if (acc_range > SINGLE_WORD) { 3109 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3110 goto error_out; 3111 /* Starting offset to browse */ 3112 idiag.offset.last_rd = offset; 3113 } else if (acc_range != SINGLE_WORD) 3114 goto error_out; 3115 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3116 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3117 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3118 /* Sanity check on PCI bar write command line arguments */ 3119 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3120 goto error_out; 3121 /* Write command to PCI bar space, read-modify-write */ 3122 acc_range = SINGLE_WORD; 3123 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3124 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3125 writel(value, mem_mapped_bar + offset); 3126 readl(mem_mapped_bar + offset); 3127 } 3128 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3129 u32val = readl(mem_mapped_bar + offset); 3130 u32val |= value; 3131 writel(u32val, mem_mapped_bar + offset); 3132 readl(mem_mapped_bar + offset); 3133 } 3134 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3135 u32val = readl(mem_mapped_bar + offset); 3136 u32val &= ~value; 3137 writel(u32val, mem_mapped_bar + offset); 3138 readl(mem_mapped_bar + offset); 3139 } 3140 } else 3141 /* All other opecodes are illegal for now */ 3142 goto error_out; 3143 3144 return nbytes; 3145 error_out: 3146 memset(&idiag, 0, sizeof(idiag)); 3147 return -EINVAL; 3148 } 3149 3150 static int 3151 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3152 char *pbuffer, int len) 3153 { 3154 if (!qp) 3155 return len; 3156 3157 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3158 "\t\t%s WQ info: ", wqtype); 3159 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3160 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3161 qp->assoc_qid, qp->q_cnt_1, 3162 (unsigned long long)qp->q_cnt_4); 3163 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3164 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3165 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3166 qp->queue_id, qp->entry_count, 3167 qp->entry_size, qp->host_index, 3168 qp->hba_index, qp->entry_repost); 3169 len += snprintf(pbuffer + len, 3170 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3171 return len; 3172 } 3173 3174 static int 3175 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3176 int *len, int max_cnt, int cq_id) 3177 { 3178 struct lpfc_queue *qp; 3179 int qidx; 3180 3181 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3182 qp = phba->sli4_hba.fcp_wq[qidx]; 3183 if (qp->assoc_qid != cq_id) 3184 continue; 3185 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3186 if (*len >= max_cnt) 3187 return 1; 3188 } 3189 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3190 qp = phba->sli4_hba.nvme_wq[qidx]; 3191 if (qp->assoc_qid != cq_id) 3192 continue; 3193 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3194 if (*len >= max_cnt) 3195 return 1; 3196 } 3197 return 0; 3198 } 3199 3200 static int 3201 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3202 char *pbuffer, int len) 3203 { 3204 if (!qp) 3205 return len; 3206 3207 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3208 "\t%s CQ info: ", cqtype); 3209 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3210 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3211 "xabt:x%x wq:x%llx]\n", 3212 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3213 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3214 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3215 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3216 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3217 qp->queue_id, qp->entry_count, 3218 qp->entry_size, qp->host_index, 3219 qp->hba_index, qp->entry_repost); 3220 3221 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3222 3223 return len; 3224 } 3225 3226 static int 3227 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3228 char *rqtype, char *pbuffer, int len) 3229 { 3230 if (!qp || !datqp) 3231 return len; 3232 3233 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3234 "\t\t%s RQ info: ", rqtype); 3235 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3236 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3237 "posted:x%x rcv:x%llx]\n", 3238 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3239 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3240 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3241 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3242 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3243 qp->queue_id, qp->entry_count, qp->entry_size, 3244 qp->host_index, qp->hba_index, qp->entry_repost); 3245 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3246 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3247 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n", 3248 datqp->queue_id, datqp->entry_count, 3249 datqp->entry_size, datqp->host_index, 3250 datqp->hba_index, datqp->entry_repost); 3251 return len; 3252 } 3253 3254 static int 3255 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3256 int *len, int max_cnt, int eqidx, int eq_id) 3257 { 3258 struct lpfc_queue *qp; 3259 int qidx, rc; 3260 3261 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 3262 qp = phba->sli4_hba.fcp_cq[qidx]; 3263 if (qp->assoc_qid != eq_id) 3264 continue; 3265 3266 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len); 3267 3268 /* Reset max counter */ 3269 qp->CQ_max_cqe = 0; 3270 3271 if (*len >= max_cnt) 3272 return 1; 3273 3274 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len, 3275 max_cnt, qp->queue_id); 3276 if (rc) 3277 return 1; 3278 } 3279 3280 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 3281 qp = phba->sli4_hba.nvme_cq[qidx]; 3282 if (qp->assoc_qid != eq_id) 3283 continue; 3284 3285 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len); 3286 3287 /* Reset max counter */ 3288 qp->CQ_max_cqe = 0; 3289 3290 if (*len >= max_cnt) 3291 return 1; 3292 3293 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len, 3294 max_cnt, qp->queue_id); 3295 if (rc) 3296 return 1; 3297 } 3298 3299 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3300 /* NVMET CQset */ 3301 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3302 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3303 3304 /* Reset max counter */ 3305 qp->CQ_max_cqe = 0; 3306 3307 if (*len >= max_cnt) 3308 return 1; 3309 3310 /* RQ header */ 3311 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3312 *len = __lpfc_idiag_print_rqpair(qp, 3313 phba->sli4_hba.nvmet_mrq_data[eqidx], 3314 "NVMET MRQ", pbuffer, *len); 3315 3316 if (*len >= max_cnt) 3317 return 1; 3318 } 3319 3320 return 0; 3321 } 3322 3323 static int 3324 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 3325 char *pbuffer, int len) 3326 { 3327 if (!qp) 3328 return len; 3329 3330 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3331 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 3332 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 3333 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 3334 (unsigned long long)qp->q_cnt_4, qp->q_mode); 3335 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3336 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3337 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]", 3338 qp->queue_id, qp->entry_count, qp->entry_size, 3339 qp->host_index, qp->hba_index, qp->entry_repost); 3340 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3341 3342 return len; 3343 } 3344 3345 /** 3346 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 3347 * @file: The file pointer to read from. 3348 * @buf: The buffer to copy the data to. 3349 * @nbytes: The number of bytes to read. 3350 * @ppos: The position in the file to start reading from. 3351 * 3352 * Description: 3353 * This routine reads data from the @phba SLI4 PCI function queue information, 3354 * and copies to user @buf. 3355 * This routine only returns 1 EQs worth of information. It remembers the last 3356 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 3357 * retrieve all EQs allocated for the phba. 3358 * 3359 * Returns: 3360 * This function returns the amount of data that was read (this could be less 3361 * than @nbytes if the end of the file was reached) or a negative error value. 3362 **/ 3363 static ssize_t 3364 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 3365 loff_t *ppos) 3366 { 3367 struct lpfc_debug *debug = file->private_data; 3368 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3369 char *pbuffer; 3370 int max_cnt, rc, x, len = 0; 3371 struct lpfc_queue *qp = NULL; 3372 3373 if (!debug->buffer) 3374 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 3375 if (!debug->buffer) 3376 return 0; 3377 pbuffer = debug->buffer; 3378 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 3379 3380 if (*ppos) 3381 return 0; 3382 3383 spin_lock_irq(&phba->hbalock); 3384 3385 /* Fast-path event queue */ 3386 if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) { 3387 3388 x = phba->lpfc_idiag_last_eq; 3389 if (phba->cfg_fof && (x >= phba->io_channel_irqs)) { 3390 phba->lpfc_idiag_last_eq = 0; 3391 goto fof; 3392 } 3393 phba->lpfc_idiag_last_eq++; 3394 if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs) 3395 if (phba->cfg_fof == 0) 3396 phba->lpfc_idiag_last_eq = 0; 3397 3398 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3399 "EQ %d out of %d HBA EQs\n", 3400 x, phba->io_channel_irqs); 3401 3402 /* Fast-path EQ */ 3403 qp = phba->sli4_hba.hba_eq[x]; 3404 if (!qp) 3405 goto out; 3406 3407 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 3408 3409 /* Reset max counter */ 3410 qp->EQ_max_eqe = 0; 3411 3412 if (len >= max_cnt) 3413 goto too_big; 3414 3415 /* will dump both fcp and nvme cqs/wqs for the eq */ 3416 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 3417 max_cnt, x, qp->queue_id); 3418 if (rc) 3419 goto too_big; 3420 3421 /* Only EQ 0 has slow path CQs configured */ 3422 if (x) 3423 goto out; 3424 3425 /* Slow-path mailbox CQ */ 3426 qp = phba->sli4_hba.mbx_cq; 3427 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 3428 if (len >= max_cnt) 3429 goto too_big; 3430 3431 /* Slow-path MBOX MQ */ 3432 qp = phba->sli4_hba.mbx_wq; 3433 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 3434 if (len >= max_cnt) 3435 goto too_big; 3436 3437 /* Slow-path ELS response CQ */ 3438 qp = phba->sli4_hba.els_cq; 3439 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 3440 /* Reset max counter */ 3441 if (qp) 3442 qp->CQ_max_cqe = 0; 3443 if (len >= max_cnt) 3444 goto too_big; 3445 3446 /* Slow-path ELS WQ */ 3447 qp = phba->sli4_hba.els_wq; 3448 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 3449 if (len >= max_cnt) 3450 goto too_big; 3451 3452 qp = phba->sli4_hba.hdr_rq; 3453 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 3454 "ELS RQpair", pbuffer, len); 3455 if (len >= max_cnt) 3456 goto too_big; 3457 3458 /* Slow-path NVME LS response CQ */ 3459 qp = phba->sli4_hba.nvmels_cq; 3460 len = __lpfc_idiag_print_cq(qp, "NVME LS", 3461 pbuffer, len); 3462 /* Reset max counter */ 3463 if (qp) 3464 qp->CQ_max_cqe = 0; 3465 if (len >= max_cnt) 3466 goto too_big; 3467 3468 /* Slow-path NVME LS WQ */ 3469 qp = phba->sli4_hba.nvmels_wq; 3470 len = __lpfc_idiag_print_wq(qp, "NVME LS", 3471 pbuffer, len); 3472 if (len >= max_cnt) 3473 goto too_big; 3474 3475 goto out; 3476 } 3477 3478 fof: 3479 if (phba->cfg_fof) { 3480 /* FOF EQ */ 3481 qp = phba->sli4_hba.fof_eq; 3482 len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len); 3483 3484 /* Reset max counter */ 3485 if (qp) 3486 qp->EQ_max_eqe = 0; 3487 3488 if (len >= max_cnt) 3489 goto too_big; 3490 3491 /* OAS CQ */ 3492 qp = phba->sli4_hba.oas_cq; 3493 len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len); 3494 /* Reset max counter */ 3495 if (qp) 3496 qp->CQ_max_cqe = 0; 3497 if (len >= max_cnt) 3498 goto too_big; 3499 3500 /* OAS WQ */ 3501 qp = phba->sli4_hba.oas_wq; 3502 len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len); 3503 if (len >= max_cnt) 3504 goto too_big; 3505 } 3506 3507 spin_unlock_irq(&phba->hbalock); 3508 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3509 3510 too_big: 3511 len += snprintf(pbuffer + len, 3512 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 3513 out: 3514 spin_unlock_irq(&phba->hbalock); 3515 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3516 } 3517 3518 /** 3519 * lpfc_idiag_que_param_check - queue access command parameter sanity check 3520 * @q: The pointer to queue structure. 3521 * @index: The index into a queue entry. 3522 * @count: The number of queue entries to access. 3523 * 3524 * Description: 3525 * The routine performs sanity check on device queue access method commands. 3526 * 3527 * Returns: 3528 * This function returns -EINVAL when fails the sanity check, otherwise, it 3529 * returns 0. 3530 **/ 3531 static int 3532 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 3533 { 3534 /* Only support single entry read or browsing */ 3535 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 3536 return -EINVAL; 3537 if (index > q->entry_count - 1) 3538 return -EINVAL; 3539 return 0; 3540 } 3541 3542 /** 3543 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 3544 * @pbuffer: The pointer to buffer to copy the read data into. 3545 * @pque: The pointer to the queue to be read. 3546 * @index: The index into the queue entry. 3547 * 3548 * Description: 3549 * This routine reads out a single entry from the given queue's index location 3550 * and copies it into the buffer provided. 3551 * 3552 * Returns: 3553 * This function returns 0 when it fails, otherwise, it returns the length of 3554 * the data read into the buffer provided. 3555 **/ 3556 static int 3557 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 3558 uint32_t index) 3559 { 3560 int offset, esize; 3561 uint32_t *pentry; 3562 3563 if (!pbuffer || !pque) 3564 return 0; 3565 3566 esize = pque->entry_size; 3567 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3568 "QE-INDEX[%04d]:\n", index); 3569 3570 offset = 0; 3571 pentry = pque->qe[index].address; 3572 while (esize > 0) { 3573 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 3574 "%08x ", *pentry); 3575 pentry++; 3576 offset += sizeof(uint32_t); 3577 esize -= sizeof(uint32_t); 3578 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 3579 len += snprintf(pbuffer+len, 3580 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3581 } 3582 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 3583 3584 return len; 3585 } 3586 3587 /** 3588 * lpfc_idiag_queacc_read - idiag debugfs read port queue 3589 * @file: The file pointer to read from. 3590 * @buf: The buffer to copy the data to. 3591 * @nbytes: The number of bytes to read. 3592 * @ppos: The position in the file to start reading from. 3593 * 3594 * Description: 3595 * This routine reads data from the @phba device queue memory according to the 3596 * idiag command, and copies to user @buf. Depending on the queue dump read 3597 * command setup, it does either a single queue entry read or browing through 3598 * all entries of the queue. 3599 * 3600 * Returns: 3601 * This function returns the amount of data that was read (this could be less 3602 * than @nbytes if the end of the file was reached) or a negative error value. 3603 **/ 3604 static ssize_t 3605 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 3606 loff_t *ppos) 3607 { 3608 struct lpfc_debug *debug = file->private_data; 3609 uint32_t last_index, index, count; 3610 struct lpfc_queue *pque = NULL; 3611 char *pbuffer; 3612 int len = 0; 3613 3614 /* This is a user read operation */ 3615 debug->op = LPFC_IDIAG_OP_RD; 3616 3617 if (!debug->buffer) 3618 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 3619 if (!debug->buffer) 3620 return 0; 3621 pbuffer = debug->buffer; 3622 3623 if (*ppos) 3624 return 0; 3625 3626 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3627 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3628 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3629 pque = (struct lpfc_queue *)idiag.ptr_private; 3630 } else 3631 return 0; 3632 3633 /* Browse the queue starting from index */ 3634 if (count == LPFC_QUE_ACC_BROWSE) 3635 goto que_browse; 3636 3637 /* Read a single entry from the queue */ 3638 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3639 3640 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3641 3642 que_browse: 3643 3644 /* Browse all entries from the queue */ 3645 last_index = idiag.offset.last_rd; 3646 index = last_index; 3647 3648 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 3649 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 3650 index++; 3651 if (index > pque->entry_count - 1) 3652 break; 3653 } 3654 3655 /* Set up the offset for next portion of pci cfg read */ 3656 if (index > pque->entry_count - 1) 3657 index = 0; 3658 idiag.offset.last_rd = index; 3659 3660 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3661 } 3662 3663 /** 3664 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 3665 * @file: The file pointer to read from. 3666 * @buf: The buffer to copy the user data from. 3667 * @nbytes: The number of bytes to get. 3668 * @ppos: The position in the file to start reading from. 3669 * 3670 * This routine get the debugfs idiag command struct from user space and then 3671 * perform the syntax check for port queue read (dump) or write (set) command 3672 * accordingly. In the case of port queue read command, it sets up the command 3673 * in the idiag command struct for the following debugfs read operation. In 3674 * the case of port queue write operation, it executes the write operation 3675 * into the port queue entry accordingly. 3676 * 3677 * It returns the @nbytges passing in from debugfs user space when successful. 3678 * In case of error conditions, it returns proper error code back to the user 3679 * space. 3680 **/ 3681 static ssize_t 3682 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 3683 size_t nbytes, loff_t *ppos) 3684 { 3685 struct lpfc_debug *debug = file->private_data; 3686 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3687 uint32_t qidx, quetp, queid, index, count, offset, value; 3688 uint32_t *pentry; 3689 struct lpfc_queue *pque, *qp; 3690 int rc; 3691 3692 /* This is a user write operation */ 3693 debug->op = LPFC_IDIAG_OP_WR; 3694 3695 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3696 if (rc < 0) 3697 return rc; 3698 3699 /* Get and sanity check on command feilds */ 3700 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 3701 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 3702 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 3703 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 3704 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 3705 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 3706 3707 /* Sanity check on command line arguments */ 3708 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3709 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3710 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3711 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 3712 goto error_out; 3713 if (count != 1) 3714 goto error_out; 3715 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3716 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 3717 goto error_out; 3718 } else 3719 goto error_out; 3720 3721 switch (quetp) { 3722 case LPFC_IDIAG_EQ: 3723 /* HBA event queue */ 3724 if (phba->sli4_hba.hba_eq) { 3725 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) { 3726 qp = phba->sli4_hba.hba_eq[qidx]; 3727 if (qp && qp->queue_id == queid) { 3728 /* Sanity check */ 3729 rc = lpfc_idiag_que_param_check(qp, 3730 index, count); 3731 if (rc) 3732 goto error_out; 3733 idiag.ptr_private = qp; 3734 goto pass_check; 3735 } 3736 } 3737 } 3738 goto error_out; 3739 break; 3740 case LPFC_IDIAG_CQ: 3741 /* MBX complete queue */ 3742 if (phba->sli4_hba.mbx_cq && 3743 phba->sli4_hba.mbx_cq->queue_id == queid) { 3744 /* Sanity check */ 3745 rc = lpfc_idiag_que_param_check( 3746 phba->sli4_hba.mbx_cq, index, count); 3747 if (rc) 3748 goto error_out; 3749 idiag.ptr_private = phba->sli4_hba.mbx_cq; 3750 goto pass_check; 3751 } 3752 /* ELS complete queue */ 3753 if (phba->sli4_hba.els_cq && 3754 phba->sli4_hba.els_cq->queue_id == queid) { 3755 /* Sanity check */ 3756 rc = lpfc_idiag_que_param_check( 3757 phba->sli4_hba.els_cq, index, count); 3758 if (rc) 3759 goto error_out; 3760 idiag.ptr_private = phba->sli4_hba.els_cq; 3761 goto pass_check; 3762 } 3763 /* NVME LS complete queue */ 3764 if (phba->sli4_hba.nvmels_cq && 3765 phba->sli4_hba.nvmels_cq->queue_id == queid) { 3766 /* Sanity check */ 3767 rc = lpfc_idiag_que_param_check( 3768 phba->sli4_hba.nvmels_cq, index, count); 3769 if (rc) 3770 goto error_out; 3771 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 3772 goto pass_check; 3773 } 3774 /* FCP complete queue */ 3775 if (phba->sli4_hba.fcp_cq) { 3776 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3777 qidx++) { 3778 qp = phba->sli4_hba.fcp_cq[qidx]; 3779 if (qp && qp->queue_id == queid) { 3780 /* Sanity check */ 3781 rc = lpfc_idiag_que_param_check( 3782 qp, index, count); 3783 if (rc) 3784 goto error_out; 3785 idiag.ptr_private = qp; 3786 goto pass_check; 3787 } 3788 } 3789 } 3790 /* NVME complete queue */ 3791 if (phba->sli4_hba.nvme_cq) { 3792 qidx = 0; 3793 do { 3794 if (phba->sli4_hba.nvme_cq[qidx] && 3795 phba->sli4_hba.nvme_cq[qidx]->queue_id == 3796 queid) { 3797 /* Sanity check */ 3798 rc = lpfc_idiag_que_param_check( 3799 phba->sli4_hba.nvme_cq[qidx], 3800 index, count); 3801 if (rc) 3802 goto error_out; 3803 idiag.ptr_private = 3804 phba->sli4_hba.nvme_cq[qidx]; 3805 goto pass_check; 3806 } 3807 } while (++qidx < phba->cfg_nvme_io_channel); 3808 } 3809 goto error_out; 3810 break; 3811 case LPFC_IDIAG_MQ: 3812 /* MBX work queue */ 3813 if (phba->sli4_hba.mbx_wq && 3814 phba->sli4_hba.mbx_wq->queue_id == queid) { 3815 /* Sanity check */ 3816 rc = lpfc_idiag_que_param_check( 3817 phba->sli4_hba.mbx_wq, index, count); 3818 if (rc) 3819 goto error_out; 3820 idiag.ptr_private = phba->sli4_hba.mbx_wq; 3821 goto pass_check; 3822 } 3823 goto error_out; 3824 break; 3825 case LPFC_IDIAG_WQ: 3826 /* ELS work queue */ 3827 if (phba->sli4_hba.els_wq && 3828 phba->sli4_hba.els_wq->queue_id == queid) { 3829 /* Sanity check */ 3830 rc = lpfc_idiag_que_param_check( 3831 phba->sli4_hba.els_wq, index, count); 3832 if (rc) 3833 goto error_out; 3834 idiag.ptr_private = phba->sli4_hba.els_wq; 3835 goto pass_check; 3836 } 3837 /* NVME LS work queue */ 3838 if (phba->sli4_hba.nvmels_wq && 3839 phba->sli4_hba.nvmels_wq->queue_id == queid) { 3840 /* Sanity check */ 3841 rc = lpfc_idiag_que_param_check( 3842 phba->sli4_hba.nvmels_wq, index, count); 3843 if (rc) 3844 goto error_out; 3845 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 3846 goto pass_check; 3847 } 3848 /* FCP work queue */ 3849 if (phba->sli4_hba.fcp_wq) { 3850 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; 3851 qidx++) { 3852 qp = phba->sli4_hba.fcp_wq[qidx]; 3853 if (qp && qp->queue_id == queid) { 3854 /* Sanity check */ 3855 rc = lpfc_idiag_que_param_check( 3856 qp, index, count); 3857 if (rc) 3858 goto error_out; 3859 idiag.ptr_private = qp; 3860 goto pass_check; 3861 } 3862 } 3863 } 3864 /* NVME work queue */ 3865 if (phba->sli4_hba.nvme_wq) { 3866 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3867 qidx++) { 3868 qp = phba->sli4_hba.nvme_wq[qidx]; 3869 if (qp && qp->queue_id == queid) { 3870 /* Sanity check */ 3871 rc = lpfc_idiag_que_param_check( 3872 qp, index, count); 3873 if (rc) 3874 goto error_out; 3875 idiag.ptr_private = qp; 3876 goto pass_check; 3877 } 3878 } 3879 } 3880 3881 /* NVME work queues */ 3882 if (phba->sli4_hba.nvme_wq) { 3883 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; 3884 qidx++) { 3885 if (!phba->sli4_hba.nvme_wq[qidx]) 3886 continue; 3887 if (phba->sli4_hba.nvme_wq[qidx]->queue_id == 3888 queid) { 3889 /* Sanity check */ 3890 rc = lpfc_idiag_que_param_check( 3891 phba->sli4_hba.nvme_wq[qidx], 3892 index, count); 3893 if (rc) 3894 goto error_out; 3895 idiag.ptr_private = 3896 phba->sli4_hba.nvme_wq[qidx]; 3897 goto pass_check; 3898 } 3899 } 3900 } 3901 goto error_out; 3902 break; 3903 case LPFC_IDIAG_RQ: 3904 /* HDR queue */ 3905 if (phba->sli4_hba.hdr_rq && 3906 phba->sli4_hba.hdr_rq->queue_id == queid) { 3907 /* Sanity check */ 3908 rc = lpfc_idiag_que_param_check( 3909 phba->sli4_hba.hdr_rq, index, count); 3910 if (rc) 3911 goto error_out; 3912 idiag.ptr_private = phba->sli4_hba.hdr_rq; 3913 goto pass_check; 3914 } 3915 /* DAT queue */ 3916 if (phba->sli4_hba.dat_rq && 3917 phba->sli4_hba.dat_rq->queue_id == queid) { 3918 /* Sanity check */ 3919 rc = lpfc_idiag_que_param_check( 3920 phba->sli4_hba.dat_rq, index, count); 3921 if (rc) 3922 goto error_out; 3923 idiag.ptr_private = phba->sli4_hba.dat_rq; 3924 goto pass_check; 3925 } 3926 goto error_out; 3927 break; 3928 default: 3929 goto error_out; 3930 break; 3931 } 3932 3933 pass_check: 3934 3935 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 3936 if (count == LPFC_QUE_ACC_BROWSE) 3937 idiag.offset.last_rd = index; 3938 } 3939 3940 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 3941 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 3942 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 3943 /* Additional sanity checks on write operation */ 3944 pque = (struct lpfc_queue *)idiag.ptr_private; 3945 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 3946 goto error_out; 3947 pentry = pque->qe[index].address; 3948 pentry += offset; 3949 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 3950 *pentry = value; 3951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 3952 *pentry |= value; 3953 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 3954 *pentry &= ~value; 3955 } 3956 return nbytes; 3957 3958 error_out: 3959 /* Clean out command structure on command error out */ 3960 memset(&idiag, 0, sizeof(idiag)); 3961 return -EINVAL; 3962 } 3963 3964 /** 3965 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 3966 * @phba: The pointer to hba structure. 3967 * @pbuffer: The pointer to the buffer to copy the data to. 3968 * @len: The lenght of bytes to copied. 3969 * @drbregid: The id to doorbell registers. 3970 * 3971 * Description: 3972 * This routine reads a doorbell register and copies its content to the 3973 * user buffer pointed to by @pbuffer. 3974 * 3975 * Returns: 3976 * This function returns the amount of data that was copied into @pbuffer. 3977 **/ 3978 static int 3979 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 3980 int len, uint32_t drbregid) 3981 { 3982 3983 if (!pbuffer) 3984 return 0; 3985 3986 switch (drbregid) { 3987 case LPFC_DRB_EQ: 3988 len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 3989 "EQ-DRB-REG: 0x%08x\n", 3990 readl(phba->sli4_hba.EQDBregaddr)); 3991 break; 3992 case LPFC_DRB_CQ: 3993 len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 3994 "CQ-DRB-REG: 0x%08x\n", 3995 readl(phba->sli4_hba.CQDBregaddr)); 3996 break; 3997 case LPFC_DRB_MQ: 3998 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 3999 "MQ-DRB-REG: 0x%08x\n", 4000 readl(phba->sli4_hba.MQDBregaddr)); 4001 break; 4002 case LPFC_DRB_WQ: 4003 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4004 "WQ-DRB-REG: 0x%08x\n", 4005 readl(phba->sli4_hba.WQDBregaddr)); 4006 break; 4007 case LPFC_DRB_RQ: 4008 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4009 "RQ-DRB-REG: 0x%08x\n", 4010 readl(phba->sli4_hba.RQDBregaddr)); 4011 break; 4012 default: 4013 break; 4014 } 4015 4016 return len; 4017 } 4018 4019 /** 4020 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4021 * @file: The file pointer to read from. 4022 * @buf: The buffer to copy the data to. 4023 * @nbytes: The number of bytes to read. 4024 * @ppos: The position in the file to start reading from. 4025 * 4026 * Description: 4027 * This routine reads data from the @phba device doorbell register according 4028 * to the idiag command, and copies to user @buf. Depending on the doorbell 4029 * register read command setup, it does either a single doorbell register 4030 * read or dump all doorbell registers. 4031 * 4032 * Returns: 4033 * This function returns the amount of data that was read (this could be less 4034 * than @nbytes if the end of the file was reached) or a negative error value. 4035 **/ 4036 static ssize_t 4037 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4038 loff_t *ppos) 4039 { 4040 struct lpfc_debug *debug = file->private_data; 4041 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4042 uint32_t drb_reg_id, i; 4043 char *pbuffer; 4044 int len = 0; 4045 4046 /* This is a user read operation */ 4047 debug->op = LPFC_IDIAG_OP_RD; 4048 4049 if (!debug->buffer) 4050 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4051 if (!debug->buffer) 4052 return 0; 4053 pbuffer = debug->buffer; 4054 4055 if (*ppos) 4056 return 0; 4057 4058 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4059 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4060 else 4061 return 0; 4062 4063 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4064 for (i = 1; i <= LPFC_DRB_MAX; i++) 4065 len = lpfc_idiag_drbacc_read_reg(phba, 4066 pbuffer, len, i); 4067 else 4068 len = lpfc_idiag_drbacc_read_reg(phba, 4069 pbuffer, len, drb_reg_id); 4070 4071 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4072 } 4073 4074 /** 4075 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4076 * @file: The file pointer to read from. 4077 * @buf: The buffer to copy the user data from. 4078 * @nbytes: The number of bytes to get. 4079 * @ppos: The position in the file to start reading from. 4080 * 4081 * This routine get the debugfs idiag command struct from user space and then 4082 * perform the syntax check for port doorbell register read (dump) or write 4083 * (set) command accordingly. In the case of port queue read command, it sets 4084 * up the command in the idiag command struct for the following debugfs read 4085 * operation. In the case of port doorbell register write operation, it 4086 * executes the write operation into the port doorbell register accordingly. 4087 * 4088 * It returns the @nbytges passing in from debugfs user space when successful. 4089 * In case of error conditions, it returns proper error code back to the user 4090 * space. 4091 **/ 4092 static ssize_t 4093 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4094 size_t nbytes, loff_t *ppos) 4095 { 4096 struct lpfc_debug *debug = file->private_data; 4097 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4098 uint32_t drb_reg_id, value, reg_val = 0; 4099 void __iomem *drb_reg; 4100 int rc; 4101 4102 /* This is a user write operation */ 4103 debug->op = LPFC_IDIAG_OP_WR; 4104 4105 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4106 if (rc < 0) 4107 return rc; 4108 4109 /* Sanity check on command line arguments */ 4110 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4111 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4112 4113 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4114 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4115 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4116 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4117 goto error_out; 4118 if (drb_reg_id > LPFC_DRB_MAX) 4119 goto error_out; 4120 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4121 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4122 goto error_out; 4123 if ((drb_reg_id > LPFC_DRB_MAX) && 4124 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4125 goto error_out; 4126 } else 4127 goto error_out; 4128 4129 /* Perform the write access operation */ 4130 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4131 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4132 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4133 switch (drb_reg_id) { 4134 case LPFC_DRB_EQ: 4135 drb_reg = phba->sli4_hba.EQDBregaddr; 4136 break; 4137 case LPFC_DRB_CQ: 4138 drb_reg = phba->sli4_hba.CQDBregaddr; 4139 break; 4140 case LPFC_DRB_MQ: 4141 drb_reg = phba->sli4_hba.MQDBregaddr; 4142 break; 4143 case LPFC_DRB_WQ: 4144 drb_reg = phba->sli4_hba.WQDBregaddr; 4145 break; 4146 case LPFC_DRB_RQ: 4147 drb_reg = phba->sli4_hba.RQDBregaddr; 4148 break; 4149 default: 4150 goto error_out; 4151 } 4152 4153 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4154 reg_val = value; 4155 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4156 reg_val = readl(drb_reg); 4157 reg_val |= value; 4158 } 4159 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4160 reg_val = readl(drb_reg); 4161 reg_val &= ~value; 4162 } 4163 writel(reg_val, drb_reg); 4164 readl(drb_reg); /* flush */ 4165 } 4166 return nbytes; 4167 4168 error_out: 4169 /* Clean out command structure on command error out */ 4170 memset(&idiag, 0, sizeof(idiag)); 4171 return -EINVAL; 4172 } 4173 4174 /** 4175 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4176 * @phba: The pointer to hba structure. 4177 * @pbuffer: The pointer to the buffer to copy the data to. 4178 * @len: The lenght of bytes to copied. 4179 * @drbregid: The id to doorbell registers. 4180 * 4181 * Description: 4182 * This routine reads a control register and copies its content to the 4183 * user buffer pointed to by @pbuffer. 4184 * 4185 * Returns: 4186 * This function returns the amount of data that was copied into @pbuffer. 4187 **/ 4188 static int 4189 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4190 int len, uint32_t ctlregid) 4191 { 4192 4193 if (!pbuffer) 4194 return 0; 4195 4196 switch (ctlregid) { 4197 case LPFC_CTL_PORT_SEM: 4198 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4199 "Port SemReg: 0x%08x\n", 4200 readl(phba->sli4_hba.conf_regs_memmap_p + 4201 LPFC_CTL_PORT_SEM_OFFSET)); 4202 break; 4203 case LPFC_CTL_PORT_STA: 4204 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4205 "Port StaReg: 0x%08x\n", 4206 readl(phba->sli4_hba.conf_regs_memmap_p + 4207 LPFC_CTL_PORT_STA_OFFSET)); 4208 break; 4209 case LPFC_CTL_PORT_CTL: 4210 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4211 "Port CtlReg: 0x%08x\n", 4212 readl(phba->sli4_hba.conf_regs_memmap_p + 4213 LPFC_CTL_PORT_CTL_OFFSET)); 4214 break; 4215 case LPFC_CTL_PORT_ER1: 4216 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4217 "Port Er1Reg: 0x%08x\n", 4218 readl(phba->sli4_hba.conf_regs_memmap_p + 4219 LPFC_CTL_PORT_ER1_OFFSET)); 4220 break; 4221 case LPFC_CTL_PORT_ER2: 4222 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4223 "Port Er2Reg: 0x%08x\n", 4224 readl(phba->sli4_hba.conf_regs_memmap_p + 4225 LPFC_CTL_PORT_ER2_OFFSET)); 4226 break; 4227 case LPFC_CTL_PDEV_CTL: 4228 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4229 "PDev CtlReg: 0x%08x\n", 4230 readl(phba->sli4_hba.conf_regs_memmap_p + 4231 LPFC_CTL_PDEV_CTL_OFFSET)); 4232 break; 4233 default: 4234 break; 4235 } 4236 return len; 4237 } 4238 4239 /** 4240 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4241 * @file: The file pointer to read from. 4242 * @buf: The buffer to copy the data to. 4243 * @nbytes: The number of bytes to read. 4244 * @ppos: The position in the file to start reading from. 4245 * 4246 * Description: 4247 * This routine reads data from the @phba port and device registers according 4248 * to the idiag command, and copies to user @buf. 4249 * 4250 * Returns: 4251 * This function returns the amount of data that was read (this could be less 4252 * than @nbytes if the end of the file was reached) or a negative error value. 4253 **/ 4254 static ssize_t 4255 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4256 loff_t *ppos) 4257 { 4258 struct lpfc_debug *debug = file->private_data; 4259 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4260 uint32_t ctl_reg_id, i; 4261 char *pbuffer; 4262 int len = 0; 4263 4264 /* This is a user read operation */ 4265 debug->op = LPFC_IDIAG_OP_RD; 4266 4267 if (!debug->buffer) 4268 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4269 if (!debug->buffer) 4270 return 0; 4271 pbuffer = debug->buffer; 4272 4273 if (*ppos) 4274 return 0; 4275 4276 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4277 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4278 else 4279 return 0; 4280 4281 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4282 for (i = 1; i <= LPFC_CTL_MAX; i++) 4283 len = lpfc_idiag_ctlacc_read_reg(phba, 4284 pbuffer, len, i); 4285 else 4286 len = lpfc_idiag_ctlacc_read_reg(phba, 4287 pbuffer, len, ctl_reg_id); 4288 4289 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4290 } 4291 4292 /** 4293 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4294 * @file: The file pointer to read from. 4295 * @buf: The buffer to copy the user data from. 4296 * @nbytes: The number of bytes to get. 4297 * @ppos: The position in the file to start reading from. 4298 * 4299 * This routine get the debugfs idiag command struct from user space and then 4300 * perform the syntax check for port and device control register read (dump) 4301 * or write (set) command accordingly. 4302 * 4303 * It returns the @nbytges passing in from debugfs user space when successful. 4304 * In case of error conditions, it returns proper error code back to the user 4305 * space. 4306 **/ 4307 static ssize_t 4308 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4309 size_t nbytes, loff_t *ppos) 4310 { 4311 struct lpfc_debug *debug = file->private_data; 4312 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4313 uint32_t ctl_reg_id, value, reg_val = 0; 4314 void __iomem *ctl_reg; 4315 int rc; 4316 4317 /* This is a user write operation */ 4318 debug->op = LPFC_IDIAG_OP_WR; 4319 4320 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4321 if (rc < 0) 4322 return rc; 4323 4324 /* Sanity check on command line arguments */ 4325 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4326 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4327 4328 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4329 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4330 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4331 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4332 goto error_out; 4333 if (ctl_reg_id > LPFC_CTL_MAX) 4334 goto error_out; 4335 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4336 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4337 goto error_out; 4338 if ((ctl_reg_id > LPFC_CTL_MAX) && 4339 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4340 goto error_out; 4341 } else 4342 goto error_out; 4343 4344 /* Perform the write access operation */ 4345 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4346 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4347 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4348 switch (ctl_reg_id) { 4349 case LPFC_CTL_PORT_SEM: 4350 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4351 LPFC_CTL_PORT_SEM_OFFSET; 4352 break; 4353 case LPFC_CTL_PORT_STA: 4354 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4355 LPFC_CTL_PORT_STA_OFFSET; 4356 break; 4357 case LPFC_CTL_PORT_CTL: 4358 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4359 LPFC_CTL_PORT_CTL_OFFSET; 4360 break; 4361 case LPFC_CTL_PORT_ER1: 4362 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4363 LPFC_CTL_PORT_ER1_OFFSET; 4364 break; 4365 case LPFC_CTL_PORT_ER2: 4366 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4367 LPFC_CTL_PORT_ER2_OFFSET; 4368 break; 4369 case LPFC_CTL_PDEV_CTL: 4370 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4371 LPFC_CTL_PDEV_CTL_OFFSET; 4372 break; 4373 default: 4374 goto error_out; 4375 } 4376 4377 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4378 reg_val = value; 4379 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4380 reg_val = readl(ctl_reg); 4381 reg_val |= value; 4382 } 4383 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4384 reg_val = readl(ctl_reg); 4385 reg_val &= ~value; 4386 } 4387 writel(reg_val, ctl_reg); 4388 readl(ctl_reg); /* flush */ 4389 } 4390 return nbytes; 4391 4392 error_out: 4393 /* Clean out command structure on command error out */ 4394 memset(&idiag, 0, sizeof(idiag)); 4395 return -EINVAL; 4396 } 4397 4398 /** 4399 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4400 * @phba: Pointer to HBA context object. 4401 * @pbuffer: Pointer to data buffer. 4402 * 4403 * Description: 4404 * This routine gets the driver mailbox access debugfs setup information. 4405 * 4406 * Returns: 4407 * This function returns the amount of data that was read (this could be less 4408 * than @nbytes if the end of the file was reached) or a negative error value. 4409 **/ 4410 static int 4411 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 4412 { 4413 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4414 int len = 0; 4415 4416 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4417 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4418 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4419 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4420 4421 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4422 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 4423 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4424 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 4425 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4426 "mbx_word_cnt: %04d\n", mbx_word_cnt); 4427 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 4428 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 4429 4430 return len; 4431 } 4432 4433 /** 4434 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 4435 * @file: The file pointer to read from. 4436 * @buf: The buffer to copy the data to. 4437 * @nbytes: The number of bytes to read. 4438 * @ppos: The position in the file to start reading from. 4439 * 4440 * Description: 4441 * This routine reads data from the @phba driver mailbox access debugfs setup 4442 * information. 4443 * 4444 * Returns: 4445 * This function returns the amount of data that was read (this could be less 4446 * than @nbytes if the end of the file was reached) or a negative error value. 4447 **/ 4448 static ssize_t 4449 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 4450 loff_t *ppos) 4451 { 4452 struct lpfc_debug *debug = file->private_data; 4453 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4454 char *pbuffer; 4455 int len = 0; 4456 4457 /* This is a user read operation */ 4458 debug->op = LPFC_IDIAG_OP_RD; 4459 4460 if (!debug->buffer) 4461 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 4462 if (!debug->buffer) 4463 return 0; 4464 pbuffer = debug->buffer; 4465 4466 if (*ppos) 4467 return 0; 4468 4469 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 4470 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 4471 return 0; 4472 4473 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 4474 4475 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4476 } 4477 4478 /** 4479 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 4480 * @file: The file pointer to read from. 4481 * @buf: The buffer to copy the user data from. 4482 * @nbytes: The number of bytes to get. 4483 * @ppos: The position in the file to start reading from. 4484 * 4485 * This routine get the debugfs idiag command struct from user space and then 4486 * perform the syntax check for driver mailbox command (dump) and sets up the 4487 * necessary states in the idiag command struct accordingly. 4488 * 4489 * It returns the @nbytges passing in from debugfs user space when successful. 4490 * In case of error conditions, it returns proper error code back to the user 4491 * space. 4492 **/ 4493 static ssize_t 4494 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 4495 size_t nbytes, loff_t *ppos) 4496 { 4497 struct lpfc_debug *debug = file->private_data; 4498 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4499 int rc; 4500 4501 /* This is a user write operation */ 4502 debug->op = LPFC_IDIAG_OP_WR; 4503 4504 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4505 if (rc < 0) 4506 return rc; 4507 4508 /* Sanity check on command line arguments */ 4509 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 4510 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 4511 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 4512 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 4513 4514 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 4515 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 4516 goto error_out; 4517 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 4518 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4519 goto error_out; 4520 if (mbx_word_cnt > sizeof(MAILBOX_t)) 4521 goto error_out; 4522 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 4523 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 4524 goto error_out; 4525 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 4526 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 4527 goto error_out; 4528 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 4529 goto error_out; 4530 if (mbx_mbox_cmd != 0x9b) 4531 goto error_out; 4532 } else 4533 goto error_out; 4534 4535 if (mbx_word_cnt == 0) 4536 goto error_out; 4537 if (rc != LPFC_MBX_DMP_ARG) 4538 goto error_out; 4539 if (mbx_mbox_cmd & ~0xff) 4540 goto error_out; 4541 4542 /* condition for stop mailbox dump */ 4543 if (mbx_dump_cnt == 0) 4544 goto reset_out; 4545 4546 return nbytes; 4547 4548 reset_out: 4549 /* Clean out command structure on command error out */ 4550 memset(&idiag, 0, sizeof(idiag)); 4551 return nbytes; 4552 4553 error_out: 4554 /* Clean out command structure on command error out */ 4555 memset(&idiag, 0, sizeof(idiag)); 4556 return -EINVAL; 4557 } 4558 4559 /** 4560 * lpfc_idiag_extacc_avail_get - get the available extents information 4561 * @phba: pointer to lpfc hba data structure. 4562 * @pbuffer: pointer to internal buffer. 4563 * @len: length into the internal buffer data has been copied. 4564 * 4565 * Description: 4566 * This routine is to get the available extent information. 4567 * 4568 * Returns: 4569 * overall lenth of the data read into the internal buffer. 4570 **/ 4571 static int 4572 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 4573 { 4574 uint16_t ext_cnt, ext_size; 4575 4576 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4577 "\nAvailable Extents Information:\n"); 4578 4579 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4580 "\tPort Available VPI extents: "); 4581 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 4582 &ext_cnt, &ext_size); 4583 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4584 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4585 4586 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4587 "\tPort Available VFI extents: "); 4588 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 4589 &ext_cnt, &ext_size); 4590 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4591 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4592 4593 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4594 "\tPort Available RPI extents: "); 4595 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 4596 &ext_cnt, &ext_size); 4597 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4598 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4599 4600 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4601 "\tPort Available XRI extents: "); 4602 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 4603 &ext_cnt, &ext_size); 4604 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4605 "Count %3d, Size %3d\n", ext_cnt, ext_size); 4606 4607 return len; 4608 } 4609 4610 /** 4611 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 4612 * @phba: pointer to lpfc hba data structure. 4613 * @pbuffer: pointer to internal buffer. 4614 * @len: length into the internal buffer data has been copied. 4615 * 4616 * Description: 4617 * This routine is to get the allocated extent information. 4618 * 4619 * Returns: 4620 * overall lenth of the data read into the internal buffer. 4621 **/ 4622 static int 4623 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 4624 { 4625 uint16_t ext_cnt, ext_size; 4626 int rc; 4627 4628 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4629 "\nAllocated Extents Information:\n"); 4630 4631 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4632 "\tHost Allocated VPI extents: "); 4633 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 4634 &ext_cnt, &ext_size); 4635 if (!rc) 4636 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4637 "Port %d Extent %3d, Size %3d\n", 4638 phba->brd_no, ext_cnt, ext_size); 4639 else 4640 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4641 "N/A\n"); 4642 4643 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4644 "\tHost Allocated VFI extents: "); 4645 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 4646 &ext_cnt, &ext_size); 4647 if (!rc) 4648 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4649 "Port %d Extent %3d, Size %3d\n", 4650 phba->brd_no, ext_cnt, ext_size); 4651 else 4652 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4653 "N/A\n"); 4654 4655 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4656 "\tHost Allocated RPI extents: "); 4657 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 4658 &ext_cnt, &ext_size); 4659 if (!rc) 4660 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4661 "Port %d Extent %3d, Size %3d\n", 4662 phba->brd_no, ext_cnt, ext_size); 4663 else 4664 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4665 "N/A\n"); 4666 4667 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4668 "\tHost Allocated XRI extents: "); 4669 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 4670 &ext_cnt, &ext_size); 4671 if (!rc) 4672 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4673 "Port %d Extent %3d, Size %3d\n", 4674 phba->brd_no, ext_cnt, ext_size); 4675 else 4676 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4677 "N/A\n"); 4678 4679 return len; 4680 } 4681 4682 /** 4683 * lpfc_idiag_extacc_drivr_get - get driver extent information 4684 * @phba: pointer to lpfc hba data structure. 4685 * @pbuffer: pointer to internal buffer. 4686 * @len: length into the internal buffer data has been copied. 4687 * 4688 * Description: 4689 * This routine is to get the driver extent information. 4690 * 4691 * Returns: 4692 * overall lenth of the data read into the internal buffer. 4693 **/ 4694 static int 4695 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 4696 { 4697 struct lpfc_rsrc_blks *rsrc_blks; 4698 int index; 4699 4700 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4701 "\nDriver Extents Information:\n"); 4702 4703 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4704 "\tVPI extents:\n"); 4705 index = 0; 4706 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 4707 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4708 "\t\tBlock %3d: Start %4d, Count %4d\n", 4709 index, rsrc_blks->rsrc_start, 4710 rsrc_blks->rsrc_size); 4711 index++; 4712 } 4713 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4714 "\tVFI extents:\n"); 4715 index = 0; 4716 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 4717 list) { 4718 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4719 "\t\tBlock %3d: Start %4d, Count %4d\n", 4720 index, rsrc_blks->rsrc_start, 4721 rsrc_blks->rsrc_size); 4722 index++; 4723 } 4724 4725 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4726 "\tRPI extents:\n"); 4727 index = 0; 4728 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 4729 list) { 4730 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4731 "\t\tBlock %3d: Start %4d, Count %4d\n", 4732 index, rsrc_blks->rsrc_start, 4733 rsrc_blks->rsrc_size); 4734 index++; 4735 } 4736 4737 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4738 "\tXRI extents:\n"); 4739 index = 0; 4740 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 4741 list) { 4742 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 4743 "\t\tBlock %3d: Start %4d, Count %4d\n", 4744 index, rsrc_blks->rsrc_start, 4745 rsrc_blks->rsrc_size); 4746 index++; 4747 } 4748 4749 return len; 4750 } 4751 4752 /** 4753 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 4754 * @file: The file pointer to read from. 4755 * @buf: The buffer to copy the user data from. 4756 * @nbytes: The number of bytes to get. 4757 * @ppos: The position in the file to start reading from. 4758 * 4759 * This routine get the debugfs idiag command struct from user space and then 4760 * perform the syntax check for extent information access commands and sets 4761 * up the necessary states in the idiag command struct accordingly. 4762 * 4763 * It returns the @nbytges passing in from debugfs user space when successful. 4764 * In case of error conditions, it returns proper error code back to the user 4765 * space. 4766 **/ 4767 static ssize_t 4768 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 4769 size_t nbytes, loff_t *ppos) 4770 { 4771 struct lpfc_debug *debug = file->private_data; 4772 uint32_t ext_map; 4773 int rc; 4774 4775 /* This is a user write operation */ 4776 debug->op = LPFC_IDIAG_OP_WR; 4777 4778 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4779 if (rc < 0) 4780 return rc; 4781 4782 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4783 4784 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4785 goto error_out; 4786 if (rc != LPFC_EXT_ACC_CMD_ARG) 4787 goto error_out; 4788 if (!(ext_map & LPFC_EXT_ACC_ALL)) 4789 goto error_out; 4790 4791 return nbytes; 4792 error_out: 4793 /* Clean out command structure on command error out */ 4794 memset(&idiag, 0, sizeof(idiag)); 4795 return -EINVAL; 4796 } 4797 4798 /** 4799 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 4800 * @file: The file pointer to read from. 4801 * @buf: The buffer to copy the data to. 4802 * @nbytes: The number of bytes to read. 4803 * @ppos: The position in the file to start reading from. 4804 * 4805 * Description: 4806 * This routine reads data from the proper extent information according to 4807 * the idiag command, and copies to user @buf. 4808 * 4809 * Returns: 4810 * This function returns the amount of data that was read (this could be less 4811 * than @nbytes if the end of the file was reached) or a negative error value. 4812 **/ 4813 static ssize_t 4814 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 4815 loff_t *ppos) 4816 { 4817 struct lpfc_debug *debug = file->private_data; 4818 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4819 char *pbuffer; 4820 uint32_t ext_map; 4821 int len = 0; 4822 4823 /* This is a user read operation */ 4824 debug->op = LPFC_IDIAG_OP_RD; 4825 4826 if (!debug->buffer) 4827 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 4828 if (!debug->buffer) 4829 return 0; 4830 pbuffer = debug->buffer; 4831 if (*ppos) 4832 return 0; 4833 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 4834 return 0; 4835 4836 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 4837 if (ext_map & LPFC_EXT_ACC_AVAIL) 4838 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 4839 if (ext_map & LPFC_EXT_ACC_ALLOC) 4840 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 4841 if (ext_map & LPFC_EXT_ACC_DRIVR) 4842 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 4843 4844 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4845 } 4846 4847 #undef lpfc_debugfs_op_disc_trc 4848 static const struct file_operations lpfc_debugfs_op_disc_trc = { 4849 .owner = THIS_MODULE, 4850 .open = lpfc_debugfs_disc_trc_open, 4851 .llseek = lpfc_debugfs_lseek, 4852 .read = lpfc_debugfs_read, 4853 .release = lpfc_debugfs_release, 4854 }; 4855 4856 #undef lpfc_debugfs_op_nodelist 4857 static const struct file_operations lpfc_debugfs_op_nodelist = { 4858 .owner = THIS_MODULE, 4859 .open = lpfc_debugfs_nodelist_open, 4860 .llseek = lpfc_debugfs_lseek, 4861 .read = lpfc_debugfs_read, 4862 .release = lpfc_debugfs_release, 4863 }; 4864 4865 #undef lpfc_debugfs_op_hbqinfo 4866 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 4867 .owner = THIS_MODULE, 4868 .open = lpfc_debugfs_hbqinfo_open, 4869 .llseek = lpfc_debugfs_lseek, 4870 .read = lpfc_debugfs_read, 4871 .release = lpfc_debugfs_release, 4872 }; 4873 4874 #undef lpfc_debugfs_op_dumpHBASlim 4875 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 4876 .owner = THIS_MODULE, 4877 .open = lpfc_debugfs_dumpHBASlim_open, 4878 .llseek = lpfc_debugfs_lseek, 4879 .read = lpfc_debugfs_read, 4880 .release = lpfc_debugfs_release, 4881 }; 4882 4883 #undef lpfc_debugfs_op_dumpHostSlim 4884 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 4885 .owner = THIS_MODULE, 4886 .open = lpfc_debugfs_dumpHostSlim_open, 4887 .llseek = lpfc_debugfs_lseek, 4888 .read = lpfc_debugfs_read, 4889 .release = lpfc_debugfs_release, 4890 }; 4891 4892 #undef lpfc_debugfs_op_nvmestat 4893 static const struct file_operations lpfc_debugfs_op_nvmestat = { 4894 .owner = THIS_MODULE, 4895 .open = lpfc_debugfs_nvmestat_open, 4896 .llseek = lpfc_debugfs_lseek, 4897 .read = lpfc_debugfs_read, 4898 .write = lpfc_debugfs_nvmestat_write, 4899 .release = lpfc_debugfs_release, 4900 }; 4901 4902 #undef lpfc_debugfs_op_nvmektime 4903 static const struct file_operations lpfc_debugfs_op_nvmektime = { 4904 .owner = THIS_MODULE, 4905 .open = lpfc_debugfs_nvmektime_open, 4906 .llseek = lpfc_debugfs_lseek, 4907 .read = lpfc_debugfs_read, 4908 .write = lpfc_debugfs_nvmektime_write, 4909 .release = lpfc_debugfs_release, 4910 }; 4911 4912 #undef lpfc_debugfs_op_nvmeio_trc 4913 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 4914 .owner = THIS_MODULE, 4915 .open = lpfc_debugfs_nvmeio_trc_open, 4916 .llseek = lpfc_debugfs_lseek, 4917 .read = lpfc_debugfs_read, 4918 .write = lpfc_debugfs_nvmeio_trc_write, 4919 .release = lpfc_debugfs_release, 4920 }; 4921 4922 #undef lpfc_debugfs_op_cpucheck 4923 static const struct file_operations lpfc_debugfs_op_cpucheck = { 4924 .owner = THIS_MODULE, 4925 .open = lpfc_debugfs_cpucheck_open, 4926 .llseek = lpfc_debugfs_lseek, 4927 .read = lpfc_debugfs_read, 4928 .write = lpfc_debugfs_cpucheck_write, 4929 .release = lpfc_debugfs_release, 4930 }; 4931 4932 #undef lpfc_debugfs_op_dumpData 4933 static const struct file_operations lpfc_debugfs_op_dumpData = { 4934 .owner = THIS_MODULE, 4935 .open = lpfc_debugfs_dumpData_open, 4936 .llseek = lpfc_debugfs_lseek, 4937 .read = lpfc_debugfs_read, 4938 .write = lpfc_debugfs_dumpDataDif_write, 4939 .release = lpfc_debugfs_dumpDataDif_release, 4940 }; 4941 4942 #undef lpfc_debugfs_op_dumpDif 4943 static const struct file_operations lpfc_debugfs_op_dumpDif = { 4944 .owner = THIS_MODULE, 4945 .open = lpfc_debugfs_dumpDif_open, 4946 .llseek = lpfc_debugfs_lseek, 4947 .read = lpfc_debugfs_read, 4948 .write = lpfc_debugfs_dumpDataDif_write, 4949 .release = lpfc_debugfs_dumpDataDif_release, 4950 }; 4951 4952 #undef lpfc_debugfs_op_dif_err 4953 static const struct file_operations lpfc_debugfs_op_dif_err = { 4954 .owner = THIS_MODULE, 4955 .open = simple_open, 4956 .llseek = lpfc_debugfs_lseek, 4957 .read = lpfc_debugfs_dif_err_read, 4958 .write = lpfc_debugfs_dif_err_write, 4959 .release = lpfc_debugfs_dif_err_release, 4960 }; 4961 4962 #undef lpfc_debugfs_op_slow_ring_trc 4963 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 4964 .owner = THIS_MODULE, 4965 .open = lpfc_debugfs_slow_ring_trc_open, 4966 .llseek = lpfc_debugfs_lseek, 4967 .read = lpfc_debugfs_read, 4968 .release = lpfc_debugfs_release, 4969 }; 4970 4971 static struct dentry *lpfc_debugfs_root = NULL; 4972 static atomic_t lpfc_debugfs_hba_count; 4973 4974 /* 4975 * File operations for the iDiag debugfs 4976 */ 4977 #undef lpfc_idiag_op_pciCfg 4978 static const struct file_operations lpfc_idiag_op_pciCfg = { 4979 .owner = THIS_MODULE, 4980 .open = lpfc_idiag_open, 4981 .llseek = lpfc_debugfs_lseek, 4982 .read = lpfc_idiag_pcicfg_read, 4983 .write = lpfc_idiag_pcicfg_write, 4984 .release = lpfc_idiag_cmd_release, 4985 }; 4986 4987 #undef lpfc_idiag_op_barAcc 4988 static const struct file_operations lpfc_idiag_op_barAcc = { 4989 .owner = THIS_MODULE, 4990 .open = lpfc_idiag_open, 4991 .llseek = lpfc_debugfs_lseek, 4992 .read = lpfc_idiag_baracc_read, 4993 .write = lpfc_idiag_baracc_write, 4994 .release = lpfc_idiag_cmd_release, 4995 }; 4996 4997 #undef lpfc_idiag_op_queInfo 4998 static const struct file_operations lpfc_idiag_op_queInfo = { 4999 .owner = THIS_MODULE, 5000 .open = lpfc_idiag_open, 5001 .read = lpfc_idiag_queinfo_read, 5002 .release = lpfc_idiag_release, 5003 }; 5004 5005 #undef lpfc_idiag_op_queAcc 5006 static const struct file_operations lpfc_idiag_op_queAcc = { 5007 .owner = THIS_MODULE, 5008 .open = lpfc_idiag_open, 5009 .llseek = lpfc_debugfs_lseek, 5010 .read = lpfc_idiag_queacc_read, 5011 .write = lpfc_idiag_queacc_write, 5012 .release = lpfc_idiag_cmd_release, 5013 }; 5014 5015 #undef lpfc_idiag_op_drbAcc 5016 static const struct file_operations lpfc_idiag_op_drbAcc = { 5017 .owner = THIS_MODULE, 5018 .open = lpfc_idiag_open, 5019 .llseek = lpfc_debugfs_lseek, 5020 .read = lpfc_idiag_drbacc_read, 5021 .write = lpfc_idiag_drbacc_write, 5022 .release = lpfc_idiag_cmd_release, 5023 }; 5024 5025 #undef lpfc_idiag_op_ctlAcc 5026 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5027 .owner = THIS_MODULE, 5028 .open = lpfc_idiag_open, 5029 .llseek = lpfc_debugfs_lseek, 5030 .read = lpfc_idiag_ctlacc_read, 5031 .write = lpfc_idiag_ctlacc_write, 5032 .release = lpfc_idiag_cmd_release, 5033 }; 5034 5035 #undef lpfc_idiag_op_mbxAcc 5036 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5037 .owner = THIS_MODULE, 5038 .open = lpfc_idiag_open, 5039 .llseek = lpfc_debugfs_lseek, 5040 .read = lpfc_idiag_mbxacc_read, 5041 .write = lpfc_idiag_mbxacc_write, 5042 .release = lpfc_idiag_cmd_release, 5043 }; 5044 5045 #undef lpfc_idiag_op_extAcc 5046 static const struct file_operations lpfc_idiag_op_extAcc = { 5047 .owner = THIS_MODULE, 5048 .open = lpfc_idiag_open, 5049 .llseek = lpfc_debugfs_lseek, 5050 .read = lpfc_idiag_extacc_read, 5051 .write = lpfc_idiag_extacc_write, 5052 .release = lpfc_idiag_cmd_release, 5053 }; 5054 5055 #endif 5056 5057 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5058 * @phba: Pointer to HBA context object. 5059 * @dmabuf: Pointer to a DMA buffer descriptor. 5060 * 5061 * Description: 5062 * This routine dump a bsg pass-through non-embedded mailbox command with 5063 * external buffer. 5064 **/ 5065 void 5066 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5067 enum mbox_type mbox_tp, enum dma_type dma_tp, 5068 enum sta_type sta_tp, 5069 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5070 { 5071 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5072 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5073 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5074 int len = 0; 5075 uint32_t do_dump = 0; 5076 uint32_t *pword; 5077 uint32_t i; 5078 5079 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5080 return; 5081 5082 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5083 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5084 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5085 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5086 5087 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5088 (*mbx_dump_cnt == 0) || 5089 (*mbx_word_cnt == 0)) 5090 return; 5091 5092 if (*mbx_mbox_cmd != 0x9B) 5093 return; 5094 5095 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5096 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5097 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5098 pr_err("\nRead mbox command (x%x), " 5099 "nemb:0x%x, extbuf_cnt:%d:\n", 5100 sta_tp, nemb_tp, ext_buf); 5101 } 5102 } 5103 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5104 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5105 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5106 pr_err("\nRead mbox buffer (x%x), " 5107 "nemb:0x%x, extbuf_seq:%d:\n", 5108 sta_tp, nemb_tp, ext_buf); 5109 } 5110 } 5111 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5112 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5113 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5114 pr_err("\nWrite mbox command (x%x), " 5115 "nemb:0x%x, extbuf_cnt:%d:\n", 5116 sta_tp, nemb_tp, ext_buf); 5117 } 5118 } 5119 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5120 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5121 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5122 pr_err("\nWrite mbox buffer (x%x), " 5123 "nemb:0x%x, extbuf_seq:%d:\n", 5124 sta_tp, nemb_tp, ext_buf); 5125 } 5126 } 5127 5128 /* dump buffer content */ 5129 if (do_dump) { 5130 pword = (uint32_t *)dmabuf->virt; 5131 for (i = 0; i < *mbx_word_cnt; i++) { 5132 if (!(i % 8)) { 5133 if (i != 0) 5134 pr_err("%s\n", line_buf); 5135 len = 0; 5136 len += snprintf(line_buf+len, 5137 LPFC_MBX_ACC_LBUF_SZ-len, 5138 "%03d: ", i); 5139 } 5140 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5141 "%08x ", (uint32_t)*pword); 5142 pword++; 5143 } 5144 if ((i - 1) % 8) 5145 pr_err("%s\n", line_buf); 5146 (*mbx_dump_cnt)--; 5147 } 5148 5149 /* Clean out command structure on reaching dump count */ 5150 if (*mbx_dump_cnt == 0) 5151 memset(&idiag, 0, sizeof(idiag)); 5152 return; 5153 #endif 5154 } 5155 5156 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5157 * @phba: Pointer to HBA context object. 5158 * @dmabuf: Pointer to a DMA buffer descriptor. 5159 * 5160 * Description: 5161 * This routine dump a pass-through non-embedded mailbox command from issue 5162 * mailbox command. 5163 **/ 5164 void 5165 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5166 { 5167 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5168 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5169 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5170 int len = 0; 5171 uint32_t *pword; 5172 uint8_t *pbyte; 5173 uint32_t i, j; 5174 5175 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5176 return; 5177 5178 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5179 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5180 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5181 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5182 5183 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5184 (*mbx_dump_cnt == 0) || 5185 (*mbx_word_cnt == 0)) 5186 return; 5187 5188 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5189 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5190 return; 5191 5192 /* dump buffer content */ 5193 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5194 pr_err("Mailbox command:0x%x dump by word:\n", 5195 pmbox->mbxCommand); 5196 pword = (uint32_t *)pmbox; 5197 for (i = 0; i < *mbx_word_cnt; i++) { 5198 if (!(i % 8)) { 5199 if (i != 0) 5200 pr_err("%s\n", line_buf); 5201 len = 0; 5202 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5203 len += snprintf(line_buf+len, 5204 LPFC_MBX_ACC_LBUF_SZ-len, 5205 "%03d: ", i); 5206 } 5207 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5208 "%08x ", 5209 ((uint32_t)*pword) & 0xffffffff); 5210 pword++; 5211 } 5212 if ((i - 1) % 8) 5213 pr_err("%s\n", line_buf); 5214 pr_err("\n"); 5215 } 5216 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5217 pr_err("Mailbox command:0x%x dump by byte:\n", 5218 pmbox->mbxCommand); 5219 pbyte = (uint8_t *)pmbox; 5220 for (i = 0; i < *mbx_word_cnt; i++) { 5221 if (!(i % 8)) { 5222 if (i != 0) 5223 pr_err("%s\n", line_buf); 5224 len = 0; 5225 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5226 len += snprintf(line_buf+len, 5227 LPFC_MBX_ACC_LBUF_SZ-len, 5228 "%03d: ", i); 5229 } 5230 for (j = 0; j < 4; j++) { 5231 len += snprintf(line_buf+len, 5232 LPFC_MBX_ACC_LBUF_SZ-len, 5233 "%02x", 5234 ((uint8_t)*pbyte) & 0xff); 5235 pbyte++; 5236 } 5237 len += snprintf(line_buf+len, 5238 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5239 } 5240 if ((i - 1) % 8) 5241 pr_err("%s\n", line_buf); 5242 pr_err("\n"); 5243 } 5244 (*mbx_dump_cnt)--; 5245 5246 /* Clean out command structure on reaching dump count */ 5247 if (*mbx_dump_cnt == 0) 5248 memset(&idiag, 0, sizeof(idiag)); 5249 return; 5250 #endif 5251 } 5252 5253 /** 5254 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5255 * @vport: The vport pointer to initialize. 5256 * 5257 * Description: 5258 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5259 * If not already created, this routine will create the lpfc directory, and 5260 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5261 * also create each file used to access lpfc specific debugfs information. 5262 **/ 5263 inline void 5264 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5265 { 5266 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5267 struct lpfc_hba *phba = vport->phba; 5268 char name[64]; 5269 uint32_t num, i; 5270 bool pport_setup = false; 5271 5272 if (!lpfc_debugfs_enable) 5273 return; 5274 5275 /* Setup lpfc root directory */ 5276 if (!lpfc_debugfs_root) { 5277 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5278 atomic_set(&lpfc_debugfs_hba_count, 0); 5279 if (!lpfc_debugfs_root) { 5280 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5281 "0408 Cannot create debugfs root\n"); 5282 goto debug_failed; 5283 } 5284 } 5285 if (!lpfc_debugfs_start_time) 5286 lpfc_debugfs_start_time = jiffies; 5287 5288 /* Setup funcX directory for specific HBA PCI function */ 5289 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5290 if (!phba->hba_debugfs_root) { 5291 pport_setup = true; 5292 phba->hba_debugfs_root = 5293 debugfs_create_dir(name, lpfc_debugfs_root); 5294 if (!phba->hba_debugfs_root) { 5295 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5296 "0412 Cannot create debugfs hba\n"); 5297 goto debug_failed; 5298 } 5299 atomic_inc(&lpfc_debugfs_hba_count); 5300 atomic_set(&phba->debugfs_vport_count, 0); 5301 5302 /* Setup hbqinfo */ 5303 snprintf(name, sizeof(name), "hbqinfo"); 5304 phba->debug_hbqinfo = 5305 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5306 phba->hba_debugfs_root, 5307 phba, &lpfc_debugfs_op_hbqinfo); 5308 if (!phba->debug_hbqinfo) { 5309 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5310 "0411 Cannot create debugfs hbqinfo\n"); 5311 goto debug_failed; 5312 } 5313 5314 /* Setup dumpHBASlim */ 5315 if (phba->sli_rev < LPFC_SLI_REV4) { 5316 snprintf(name, sizeof(name), "dumpHBASlim"); 5317 phba->debug_dumpHBASlim = 5318 debugfs_create_file(name, 5319 S_IFREG|S_IRUGO|S_IWUSR, 5320 phba->hba_debugfs_root, 5321 phba, &lpfc_debugfs_op_dumpHBASlim); 5322 if (!phba->debug_dumpHBASlim) { 5323 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5324 "0413 Cannot create debugfs " 5325 "dumpHBASlim\n"); 5326 goto debug_failed; 5327 } 5328 } else 5329 phba->debug_dumpHBASlim = NULL; 5330 5331 /* Setup dumpHostSlim */ 5332 if (phba->sli_rev < LPFC_SLI_REV4) { 5333 snprintf(name, sizeof(name), "dumpHostSlim"); 5334 phba->debug_dumpHostSlim = 5335 debugfs_create_file(name, 5336 S_IFREG|S_IRUGO|S_IWUSR, 5337 phba->hba_debugfs_root, 5338 phba, &lpfc_debugfs_op_dumpHostSlim); 5339 if (!phba->debug_dumpHostSlim) { 5340 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5341 "0414 Cannot create debugfs " 5342 "dumpHostSlim\n"); 5343 goto debug_failed; 5344 } 5345 } else 5346 phba->debug_dumpHostSlim = NULL; 5347 5348 /* Setup dumpData */ 5349 snprintf(name, sizeof(name), "dumpData"); 5350 phba->debug_dumpData = 5351 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5352 phba->hba_debugfs_root, 5353 phba, &lpfc_debugfs_op_dumpData); 5354 if (!phba->debug_dumpData) { 5355 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5356 "0800 Cannot create debugfs dumpData\n"); 5357 goto debug_failed; 5358 } 5359 5360 /* Setup dumpDif */ 5361 snprintf(name, sizeof(name), "dumpDif"); 5362 phba->debug_dumpDif = 5363 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5364 phba->hba_debugfs_root, 5365 phba, &lpfc_debugfs_op_dumpDif); 5366 if (!phba->debug_dumpDif) { 5367 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5368 "0801 Cannot create debugfs dumpDif\n"); 5369 goto debug_failed; 5370 } 5371 5372 /* Setup DIF Error Injections */ 5373 snprintf(name, sizeof(name), "InjErrLBA"); 5374 phba->debug_InjErrLBA = 5375 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5376 phba->hba_debugfs_root, 5377 phba, &lpfc_debugfs_op_dif_err); 5378 if (!phba->debug_InjErrLBA) { 5379 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5380 "0807 Cannot create debugfs InjErrLBA\n"); 5381 goto debug_failed; 5382 } 5383 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5384 5385 snprintf(name, sizeof(name), "InjErrNPortID"); 5386 phba->debug_InjErrNPortID = 5387 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5388 phba->hba_debugfs_root, 5389 phba, &lpfc_debugfs_op_dif_err); 5390 if (!phba->debug_InjErrNPortID) { 5391 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5392 "0809 Cannot create debugfs InjErrNPortID\n"); 5393 goto debug_failed; 5394 } 5395 5396 snprintf(name, sizeof(name), "InjErrWWPN"); 5397 phba->debug_InjErrWWPN = 5398 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5399 phba->hba_debugfs_root, 5400 phba, &lpfc_debugfs_op_dif_err); 5401 if (!phba->debug_InjErrWWPN) { 5402 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5403 "0810 Cannot create debugfs InjErrWWPN\n"); 5404 goto debug_failed; 5405 } 5406 5407 snprintf(name, sizeof(name), "writeGuardInjErr"); 5408 phba->debug_writeGuard = 5409 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5410 phba->hba_debugfs_root, 5411 phba, &lpfc_debugfs_op_dif_err); 5412 if (!phba->debug_writeGuard) { 5413 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5414 "0802 Cannot create debugfs writeGuard\n"); 5415 goto debug_failed; 5416 } 5417 5418 snprintf(name, sizeof(name), "writeAppInjErr"); 5419 phba->debug_writeApp = 5420 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5421 phba->hba_debugfs_root, 5422 phba, &lpfc_debugfs_op_dif_err); 5423 if (!phba->debug_writeApp) { 5424 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5425 "0803 Cannot create debugfs writeApp\n"); 5426 goto debug_failed; 5427 } 5428 5429 snprintf(name, sizeof(name), "writeRefInjErr"); 5430 phba->debug_writeRef = 5431 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5432 phba->hba_debugfs_root, 5433 phba, &lpfc_debugfs_op_dif_err); 5434 if (!phba->debug_writeRef) { 5435 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5436 "0804 Cannot create debugfs writeRef\n"); 5437 goto debug_failed; 5438 } 5439 5440 snprintf(name, sizeof(name), "readGuardInjErr"); 5441 phba->debug_readGuard = 5442 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5443 phba->hba_debugfs_root, 5444 phba, &lpfc_debugfs_op_dif_err); 5445 if (!phba->debug_readGuard) { 5446 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5447 "0808 Cannot create debugfs readGuard\n"); 5448 goto debug_failed; 5449 } 5450 5451 snprintf(name, sizeof(name), "readAppInjErr"); 5452 phba->debug_readApp = 5453 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5454 phba->hba_debugfs_root, 5455 phba, &lpfc_debugfs_op_dif_err); 5456 if (!phba->debug_readApp) { 5457 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5458 "0805 Cannot create debugfs readApp\n"); 5459 goto debug_failed; 5460 } 5461 5462 snprintf(name, sizeof(name), "readRefInjErr"); 5463 phba->debug_readRef = 5464 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5465 phba->hba_debugfs_root, 5466 phba, &lpfc_debugfs_op_dif_err); 5467 if (!phba->debug_readRef) { 5468 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5469 "0806 Cannot create debugfs readApp\n"); 5470 goto debug_failed; 5471 } 5472 5473 /* Setup slow ring trace */ 5474 if (lpfc_debugfs_max_slow_ring_trc) { 5475 num = lpfc_debugfs_max_slow_ring_trc - 1; 5476 if (num & lpfc_debugfs_max_slow_ring_trc) { 5477 /* Change to be a power of 2 */ 5478 num = lpfc_debugfs_max_slow_ring_trc; 5479 i = 0; 5480 while (num > 1) { 5481 num = num >> 1; 5482 i++; 5483 } 5484 lpfc_debugfs_max_slow_ring_trc = (1 << i); 5485 pr_err("lpfc_debugfs_max_disc_trc changed to " 5486 "%d\n", lpfc_debugfs_max_disc_trc); 5487 } 5488 } 5489 5490 snprintf(name, sizeof(name), "slow_ring_trace"); 5491 phba->debug_slow_ring_trc = 5492 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5493 phba->hba_debugfs_root, 5494 phba, &lpfc_debugfs_op_slow_ring_trc); 5495 if (!phba->debug_slow_ring_trc) { 5496 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5497 "0415 Cannot create debugfs " 5498 "slow_ring_trace\n"); 5499 goto debug_failed; 5500 } 5501 if (!phba->slow_ring_trc) { 5502 phba->slow_ring_trc = kmalloc( 5503 (sizeof(struct lpfc_debugfs_trc) * 5504 lpfc_debugfs_max_slow_ring_trc), 5505 GFP_KERNEL); 5506 if (!phba->slow_ring_trc) { 5507 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5508 "0416 Cannot create debugfs " 5509 "slow_ring buffer\n"); 5510 goto debug_failed; 5511 } 5512 atomic_set(&phba->slow_ring_trc_cnt, 0); 5513 memset(phba->slow_ring_trc, 0, 5514 (sizeof(struct lpfc_debugfs_trc) * 5515 lpfc_debugfs_max_slow_ring_trc)); 5516 } 5517 5518 snprintf(name, sizeof(name), "nvmeio_trc"); 5519 phba->debug_nvmeio_trc = 5520 debugfs_create_file(name, 0644, 5521 phba->hba_debugfs_root, 5522 phba, &lpfc_debugfs_op_nvmeio_trc); 5523 if (!phba->debug_nvmeio_trc) { 5524 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5525 "0574 No create debugfs nvmeio_trc\n"); 5526 goto debug_failed; 5527 } 5528 5529 atomic_set(&phba->nvmeio_trc_cnt, 0); 5530 if (lpfc_debugfs_max_nvmeio_trc) { 5531 num = lpfc_debugfs_max_nvmeio_trc - 1; 5532 if (num & lpfc_debugfs_max_disc_trc) { 5533 /* Change to be a power of 2 */ 5534 num = lpfc_debugfs_max_nvmeio_trc; 5535 i = 0; 5536 while (num > 1) { 5537 num = num >> 1; 5538 i++; 5539 } 5540 lpfc_debugfs_max_nvmeio_trc = (1 << i); 5541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5542 "0575 lpfc_debugfs_max_nvmeio_trc " 5543 "changed to %d\n", 5544 lpfc_debugfs_max_nvmeio_trc); 5545 } 5546 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 5547 5548 /* Allocate trace buffer and initialize */ 5549 phba->nvmeio_trc = kzalloc( 5550 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 5551 phba->nvmeio_trc_size), GFP_KERNEL); 5552 5553 if (!phba->nvmeio_trc) { 5554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5555 "0576 Cannot create debugfs " 5556 "nvmeio_trc buffer\n"); 5557 goto nvmeio_off; 5558 } 5559 phba->nvmeio_trc_on = 1; 5560 phba->nvmeio_trc_output_idx = 0; 5561 phba->nvmeio_trc = NULL; 5562 } else { 5563 nvmeio_off: 5564 phba->nvmeio_trc_size = 0; 5565 phba->nvmeio_trc_on = 0; 5566 phba->nvmeio_trc_output_idx = 0; 5567 phba->nvmeio_trc = NULL; 5568 } 5569 } 5570 5571 snprintf(name, sizeof(name), "vport%d", vport->vpi); 5572 if (!vport->vport_debugfs_root) { 5573 vport->vport_debugfs_root = 5574 debugfs_create_dir(name, phba->hba_debugfs_root); 5575 if (!vport->vport_debugfs_root) { 5576 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5577 "0417 Can't create debugfs\n"); 5578 goto debug_failed; 5579 } 5580 atomic_inc(&phba->debugfs_vport_count); 5581 } 5582 5583 if (lpfc_debugfs_max_disc_trc) { 5584 num = lpfc_debugfs_max_disc_trc - 1; 5585 if (num & lpfc_debugfs_max_disc_trc) { 5586 /* Change to be a power of 2 */ 5587 num = lpfc_debugfs_max_disc_trc; 5588 i = 0; 5589 while (num > 1) { 5590 num = num >> 1; 5591 i++; 5592 } 5593 lpfc_debugfs_max_disc_trc = (1 << i); 5594 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 5595 lpfc_debugfs_max_disc_trc); 5596 } 5597 } 5598 5599 vport->disc_trc = kzalloc( 5600 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 5601 GFP_KERNEL); 5602 5603 if (!vport->disc_trc) { 5604 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5605 "0418 Cannot create debugfs disc trace " 5606 "buffer\n"); 5607 goto debug_failed; 5608 } 5609 atomic_set(&vport->disc_trc_cnt, 0); 5610 5611 snprintf(name, sizeof(name), "discovery_trace"); 5612 vport->debug_disc_trc = 5613 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5614 vport->vport_debugfs_root, 5615 vport, &lpfc_debugfs_op_disc_trc); 5616 if (!vport->debug_disc_trc) { 5617 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5618 "0419 Cannot create debugfs " 5619 "discovery_trace\n"); 5620 goto debug_failed; 5621 } 5622 snprintf(name, sizeof(name), "nodelist"); 5623 vport->debug_nodelist = 5624 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5625 vport->vport_debugfs_root, 5626 vport, &lpfc_debugfs_op_nodelist); 5627 if (!vport->debug_nodelist) { 5628 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5629 "2985 Can't create debugfs nodelist\n"); 5630 goto debug_failed; 5631 } 5632 5633 snprintf(name, sizeof(name), "nvmestat"); 5634 vport->debug_nvmestat = 5635 debugfs_create_file(name, 0644, 5636 vport->vport_debugfs_root, 5637 vport, &lpfc_debugfs_op_nvmestat); 5638 if (!vport->debug_nvmestat) { 5639 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5640 "0811 Cannot create debugfs nvmestat\n"); 5641 goto debug_failed; 5642 } 5643 5644 snprintf(name, sizeof(name), "nvmektime"); 5645 vport->debug_nvmektime = 5646 debugfs_create_file(name, 0644, 5647 vport->vport_debugfs_root, 5648 vport, &lpfc_debugfs_op_nvmektime); 5649 if (!vport->debug_nvmektime) { 5650 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5651 "0815 Cannot create debugfs nvmektime\n"); 5652 goto debug_failed; 5653 } 5654 5655 snprintf(name, sizeof(name), "cpucheck"); 5656 vport->debug_cpucheck = 5657 debugfs_create_file(name, 0644, 5658 vport->vport_debugfs_root, 5659 vport, &lpfc_debugfs_op_cpucheck); 5660 if (!vport->debug_cpucheck) { 5661 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5662 "0819 Cannot create debugfs cpucheck\n"); 5663 goto debug_failed; 5664 } 5665 5666 /* 5667 * The following section is for additional directories/files for the 5668 * physical port. 5669 */ 5670 5671 if (!pport_setup) 5672 goto debug_failed; 5673 5674 /* 5675 * iDiag debugfs root entry points for SLI4 device only 5676 */ 5677 if (phba->sli_rev < LPFC_SLI_REV4) 5678 goto debug_failed; 5679 5680 snprintf(name, sizeof(name), "iDiag"); 5681 if (!phba->idiag_root) { 5682 phba->idiag_root = 5683 debugfs_create_dir(name, phba->hba_debugfs_root); 5684 if (!phba->idiag_root) { 5685 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5686 "2922 Can't create idiag debugfs\n"); 5687 goto debug_failed; 5688 } 5689 /* Initialize iDiag data structure */ 5690 memset(&idiag, 0, sizeof(idiag)); 5691 } 5692 5693 /* iDiag read PCI config space */ 5694 snprintf(name, sizeof(name), "pciCfg"); 5695 if (!phba->idiag_pci_cfg) { 5696 phba->idiag_pci_cfg = 5697 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5698 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 5699 if (!phba->idiag_pci_cfg) { 5700 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5701 "2923 Can't create idiag debugfs\n"); 5702 goto debug_failed; 5703 } 5704 idiag.offset.last_rd = 0; 5705 } 5706 5707 /* iDiag PCI BAR access */ 5708 snprintf(name, sizeof(name), "barAcc"); 5709 if (!phba->idiag_bar_acc) { 5710 phba->idiag_bar_acc = 5711 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5712 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 5713 if (!phba->idiag_bar_acc) { 5714 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5715 "3056 Can't create idiag debugfs\n"); 5716 goto debug_failed; 5717 } 5718 idiag.offset.last_rd = 0; 5719 } 5720 5721 /* iDiag get PCI function queue information */ 5722 snprintf(name, sizeof(name), "queInfo"); 5723 if (!phba->idiag_que_info) { 5724 phba->idiag_que_info = 5725 debugfs_create_file(name, S_IFREG|S_IRUGO, 5726 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 5727 if (!phba->idiag_que_info) { 5728 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5729 "2924 Can't create idiag debugfs\n"); 5730 goto debug_failed; 5731 } 5732 } 5733 5734 /* iDiag access PCI function queue */ 5735 snprintf(name, sizeof(name), "queAcc"); 5736 if (!phba->idiag_que_acc) { 5737 phba->idiag_que_acc = 5738 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5739 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 5740 if (!phba->idiag_que_acc) { 5741 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5742 "2926 Can't create idiag debugfs\n"); 5743 goto debug_failed; 5744 } 5745 } 5746 5747 /* iDiag access PCI function doorbell registers */ 5748 snprintf(name, sizeof(name), "drbAcc"); 5749 if (!phba->idiag_drb_acc) { 5750 phba->idiag_drb_acc = 5751 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5752 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 5753 if (!phba->idiag_drb_acc) { 5754 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5755 "2927 Can't create idiag debugfs\n"); 5756 goto debug_failed; 5757 } 5758 } 5759 5760 /* iDiag access PCI function control registers */ 5761 snprintf(name, sizeof(name), "ctlAcc"); 5762 if (!phba->idiag_ctl_acc) { 5763 phba->idiag_ctl_acc = 5764 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5765 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 5766 if (!phba->idiag_ctl_acc) { 5767 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5768 "2981 Can't create idiag debugfs\n"); 5769 goto debug_failed; 5770 } 5771 } 5772 5773 /* iDiag access mbox commands */ 5774 snprintf(name, sizeof(name), "mbxAcc"); 5775 if (!phba->idiag_mbx_acc) { 5776 phba->idiag_mbx_acc = 5777 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5778 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 5779 if (!phba->idiag_mbx_acc) { 5780 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5781 "2980 Can't create idiag debugfs\n"); 5782 goto debug_failed; 5783 } 5784 } 5785 5786 /* iDiag extents access commands */ 5787 if (phba->sli4_hba.extents_in_use) { 5788 snprintf(name, sizeof(name), "extAcc"); 5789 if (!phba->idiag_ext_acc) { 5790 phba->idiag_ext_acc = 5791 debugfs_create_file(name, 5792 S_IFREG|S_IRUGO|S_IWUSR, 5793 phba->idiag_root, phba, 5794 &lpfc_idiag_op_extAcc); 5795 if (!phba->idiag_ext_acc) { 5796 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5797 "2986 Cant create " 5798 "idiag debugfs\n"); 5799 goto debug_failed; 5800 } 5801 } 5802 } 5803 5804 debug_failed: 5805 return; 5806 #endif 5807 } 5808 5809 /** 5810 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 5811 * @vport: The vport pointer to remove from debugfs. 5812 * 5813 * Description: 5814 * When Debugfs is configured this routine removes debugfs file system elements 5815 * that are specific to this vport. It also checks to see if there are any 5816 * users left for the debugfs directories associated with the HBA and driver. If 5817 * this is the last user of the HBA directory or driver directory then it will 5818 * remove those from the debugfs infrastructure as well. 5819 **/ 5820 inline void 5821 lpfc_debugfs_terminate(struct lpfc_vport *vport) 5822 { 5823 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5824 struct lpfc_hba *phba = vport->phba; 5825 5826 kfree(vport->disc_trc); 5827 vport->disc_trc = NULL; 5828 5829 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 5830 vport->debug_disc_trc = NULL; 5831 5832 debugfs_remove(vport->debug_nodelist); /* nodelist */ 5833 vport->debug_nodelist = NULL; 5834 5835 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 5836 vport->debug_nvmestat = NULL; 5837 5838 debugfs_remove(vport->debug_nvmektime); /* nvmektime */ 5839 vport->debug_nvmektime = NULL; 5840 5841 debugfs_remove(vport->debug_cpucheck); /* cpucheck */ 5842 vport->debug_cpucheck = NULL; 5843 5844 if (vport->vport_debugfs_root) { 5845 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 5846 vport->vport_debugfs_root = NULL; 5847 atomic_dec(&phba->debugfs_vport_count); 5848 } 5849 5850 if (atomic_read(&phba->debugfs_vport_count) == 0) { 5851 5852 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 5853 phba->debug_hbqinfo = NULL; 5854 5855 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 5856 phba->debug_dumpHBASlim = NULL; 5857 5858 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 5859 phba->debug_dumpHostSlim = NULL; 5860 5861 debugfs_remove(phba->debug_dumpData); /* dumpData */ 5862 phba->debug_dumpData = NULL; 5863 5864 debugfs_remove(phba->debug_dumpDif); /* dumpDif */ 5865 phba->debug_dumpDif = NULL; 5866 5867 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 5868 phba->debug_InjErrLBA = NULL; 5869 5870 debugfs_remove(phba->debug_InjErrNPortID); 5871 phba->debug_InjErrNPortID = NULL; 5872 5873 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 5874 phba->debug_InjErrWWPN = NULL; 5875 5876 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 5877 phba->debug_writeGuard = NULL; 5878 5879 debugfs_remove(phba->debug_writeApp); /* writeApp */ 5880 phba->debug_writeApp = NULL; 5881 5882 debugfs_remove(phba->debug_writeRef); /* writeRef */ 5883 phba->debug_writeRef = NULL; 5884 5885 debugfs_remove(phba->debug_readGuard); /* readGuard */ 5886 phba->debug_readGuard = NULL; 5887 5888 debugfs_remove(phba->debug_readApp); /* readApp */ 5889 phba->debug_readApp = NULL; 5890 5891 debugfs_remove(phba->debug_readRef); /* readRef */ 5892 phba->debug_readRef = NULL; 5893 5894 kfree(phba->slow_ring_trc); 5895 phba->slow_ring_trc = NULL; 5896 5897 /* slow_ring_trace */ 5898 debugfs_remove(phba->debug_slow_ring_trc); 5899 phba->debug_slow_ring_trc = NULL; 5900 5901 debugfs_remove(phba->debug_nvmeio_trc); 5902 phba->debug_nvmeio_trc = NULL; 5903 5904 kfree(phba->nvmeio_trc); 5905 phba->nvmeio_trc = NULL; 5906 5907 /* 5908 * iDiag release 5909 */ 5910 if (phba->sli_rev == LPFC_SLI_REV4) { 5911 /* iDiag extAcc */ 5912 debugfs_remove(phba->idiag_ext_acc); 5913 phba->idiag_ext_acc = NULL; 5914 5915 /* iDiag mbxAcc */ 5916 debugfs_remove(phba->idiag_mbx_acc); 5917 phba->idiag_mbx_acc = NULL; 5918 5919 /* iDiag ctlAcc */ 5920 debugfs_remove(phba->idiag_ctl_acc); 5921 phba->idiag_ctl_acc = NULL; 5922 5923 /* iDiag drbAcc */ 5924 debugfs_remove(phba->idiag_drb_acc); 5925 phba->idiag_drb_acc = NULL; 5926 5927 /* iDiag queAcc */ 5928 debugfs_remove(phba->idiag_que_acc); 5929 phba->idiag_que_acc = NULL; 5930 5931 /* iDiag queInfo */ 5932 debugfs_remove(phba->idiag_que_info); 5933 phba->idiag_que_info = NULL; 5934 5935 /* iDiag barAcc */ 5936 debugfs_remove(phba->idiag_bar_acc); 5937 phba->idiag_bar_acc = NULL; 5938 5939 /* iDiag pciCfg */ 5940 debugfs_remove(phba->idiag_pci_cfg); 5941 phba->idiag_pci_cfg = NULL; 5942 5943 /* Finally remove the iDiag debugfs root */ 5944 debugfs_remove(phba->idiag_root); 5945 phba->idiag_root = NULL; 5946 } 5947 5948 if (phba->hba_debugfs_root) { 5949 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 5950 phba->hba_debugfs_root = NULL; 5951 atomic_dec(&lpfc_debugfs_hba_count); 5952 } 5953 5954 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 5955 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 5956 lpfc_debugfs_root = NULL; 5957 } 5958 } 5959 #endif 5960 return; 5961 } 5962 5963 /* 5964 * Driver debug utility routines outside of debugfs. The debug utility 5965 * routines implemented here is intended to be used in the instrumented 5966 * debug driver for debugging host or port issues. 5967 */ 5968 5969 /** 5970 * lpfc_debug_dump_all_queues - dump all the queues with a hba 5971 * @phba: Pointer to HBA context object. 5972 * 5973 * This function dumps entries of all the queues asociated with the @phba. 5974 **/ 5975 void 5976 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 5977 { 5978 int idx; 5979 5980 /* 5981 * Dump Work Queues (WQs) 5982 */ 5983 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 5984 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 5985 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 5986 5987 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 5988 lpfc_debug_dump_wq(phba, DUMP_FCP, idx); 5989 5990 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 5991 lpfc_debug_dump_wq(phba, DUMP_NVME, idx); 5992 5993 lpfc_debug_dump_hdr_rq(phba); 5994 lpfc_debug_dump_dat_rq(phba); 5995 /* 5996 * Dump Complete Queues (CQs) 5997 */ 5998 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 5999 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6000 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6001 6002 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 6003 lpfc_debug_dump_cq(phba, DUMP_FCP, idx); 6004 6005 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 6006 lpfc_debug_dump_cq(phba, DUMP_NVME, idx); 6007 6008 /* 6009 * Dump Event Queues (EQs) 6010 */ 6011 for (idx = 0; idx < phba->io_channel_irqs; idx++) 6012 lpfc_debug_dump_hba_eq(phba, idx); 6013 } 6014